One day, one decomposition
A216838: Odd primes for which 2 is not a primitive root

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One day, one decomposition
A215940: Difference between the n-th and the first (identity) permutation of (0,...,m-1), interpreted as a decimal number, divided by 9 (for any m for which 10! >= m! >= n)

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One day, one decomposition
A214423: Numbers n palindromic in only one base b, 2 <= b <= 10

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One day, one decomposition
A213382: Numbers n such that n^n mod (n + 2) = n

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One day, one decomposition
A212166: Numbers k such that the maximum exponent in its prime factorization equals the number of positive exponents (A051903(k) = A001221(k))

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One day, one decomposition
A210479: Primes p with p-1 and p+1 both practical: "Sandwich of the first kind"

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One day, one decomposition
A209202: Values of the difference d for 3 primes in geometric-arithmetic progression with the minimal sequence {3*3^j + j*d}, j = 0 to 2

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One day, one decomposition
A208177: Primes of the form 128*k + 1

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One day, one decomposition
A206039: Values of the difference d for 5 primes in arithmetic progression with the minimal start sequence {5 + j*d}, j = 0 to 4

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One day, one decomposition
A206038: Values of the difference d for 4 primes in arithmetic progression with the minimal start sequence {5 + j*d}, j = 0 to 3

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One day, one decomposition
A205511: Lesser of the n-th pair of Hamming twin primes

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One day, one decomposition
A205302: Greater of Hamming's twin primes

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One day, one decomposition
A202822: Numbers of the form 3*(x^2 + xy + y^2 + x + y) + 1 where x and y are integers

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One day, one decomposition
A202268: Numbers in which all digits are nonprimes (1, 4, 6, 8, 9)

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One day, one decomposition
A202267: Numbers in which all digits are noncomposites (1, 2, 3, 5, 7) or 0

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One day, one decomposition
A201817: Numbers k such that 90*k + 67 is prime

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One day, one decomposition
A201012: Integers that cannot be written as the product and/or quotient of Lucas numbers

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One day, one decomposition
A201010: Integers that can be written as the product and/or quotient of Lucas numbers

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One day, one decomposition
A200995: Numbers not expressible as a product of Lucas numbers

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One day, one decomposition
A198773: Numbers having exactly two representations by the quadratic form x^2+xy+y^2 with 0<=x<=y

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