A356311 Numbers k for which A003415(k) and A276086(k) are relatively prime, where A003415 is the arithmetic derivative, and A276086 is the primorial base exp-function.

0, 2, 3, 4, 5, 7, 10, 11, 12, 13, 16, 17, 18, 19, 22, 23, 24, 28, 29, 30, 31, 32, 34, 37, 40, 41, 42, 43, 47, 53, 54, 56, 58, 59, 60, 61, 66, 67, 70, 71, 72, 73, 78, 79, 80, 82, 83, 84, 89, 90, 96, 97, 101, 103, 104, 105, 107, 108, 109, 113, 114, 118, 120, 124, 127, 130, 131, 132, 136, 137, 138, 139, 140, 142, 144

Offset: 1

Author

Antti Karttunen, Nov 03 2022

Keywords

• nonn

Links

• Index entries for sequences related to primorial base

Crossrefs

Positions of 1's in A327858. Positions of 0's in A356304 (for n >= 2) and in A356305.

Cf. A003415, A276086, A356310 (characteristic function), A356312 (complement).

Cf. also A324583.

Programs

PARI

isA356311(n) = A356310(n); \\ See code in A356310.