A360127 Numbers k for which A359425(k) is odd, where A359425 is the Dirichlet convolution of the arithmetic derivative with the primorial base exp function.

4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 32, 34, 38, 40, 44, 46, 48, 50, 52, 56, 58, 62, 64, 68, 74, 76, 80, 82, 86, 88, 90, 92, 94, 96, 98, 104, 106, 112, 116, 118, 122, 124, 126, 128, 134, 136, 142, 146, 148, 150, 152, 158, 160, 164, 166, 172, 176, 178, 180, 184, 188, 192, 194, 198, 202, 206

Offset

1,1

Links

Table of n, a(n) for n=1..69.

Prog

(PARI) isA360127(n) = A360125(n);

Crossrefs

Positions of odd terms in A359425, positions of 1's in A360125, which is the characteristic function.

Complement of A360126.

Sequence in context: A093161 A307782 A325038 * A111305 A284665 A210939

Adjacent sequences: A360124 A360125 A360126 * A360128 A360129 A360130

Keyword

nonn

Author

Antti Karttunen, Feb 19 2023

Status

approved