A353465 Numbers k for which A276086(k) is of the form 4k+1.

0, 4, 6, 10, 12, 16, 18, 22, 24, 28, 32, 38, 44, 50, 56, 60, 64, 66, 70, 72, 76, 78, 82, 84, 88, 92, 98, 104, 110, 116, 120, 124, 126, 130, 132, 136, 138, 142, 144, 148, 152, 158, 164, 170, 176, 180, 184, 186, 190, 192, 196, 198, 202, 204, 208, 212, 218, 224, 230, 236, 240, 244, 246, 250, 252, 256, 258, 262, 264

Offset

1,2

Links

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

Index entries for sequences related to primorial base

Prog

(PARI)
A276086(n) = { my(m=1, p=2); while(n, m *= (p^(n%p)); n = n\p; p = nextprime(1+p)); (m); };
A353488(n) = (1==(A276086(n)%4));
isA353465(n) = A353488(n);

Crossrefs

Cf. A276086, A353486, A353488 (characteristic function).

Sequences A005408, A353466 and this sequence partition the natural numbers to three disjoint sets.

Sequence in context: A194382 A296655 A310577 * A310578 A165972 A156037

Adjacent sequences: A353462 A353463 A353464 * A353466 A353467 A353468

Keyword

nonn,base

Author

Antti Karttunen, Apr 24 2022

Status

approved