A374038 Numbers k such that A328845(k) and A328846(k) are not both even, where A328845 and A328846 are the first and second Fibonacci-based variants of the arithmetic derivative.

2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 26, 27, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 45, 46, 47, 50, 51, 53, 54, 57, 58, 59, 61, 62, 63, 66, 67, 69, 70, 71, 73, 74, 75, 77, 78, 79, 82, 83, 85, 86, 87, 89, 90, 91, 93, 94, 97, 98, 99, 101, 102, 103, 106, 107, 109, 110, 111, 113, 114, 117

Offset

1,1

Links

Antti Karttunen, Table of n, a(n) for n = 1..12000

Index entries for sequences related to prime indices in the factorization of n

Prog

(PARI) isA374038(n) = !A374036(n);

Crossrefs

Union of A374047 and A374050.

Cf. A328845, A328846, A374036, A374037 (complement).

Sequence in context: A369937 A119024 A321453 * A203076 A247180 A375398

Adjacent sequences: A374035 A374036 A374037 * A374039 A374040 A374041

Keyword

nonn

Author

Antti Karttunen, Jun 28 2024

Status

approved