A353466 Numbers k for which A276086(k) is of the form 4k+3.

2, 8, 14, 20, 26, 30, 34, 36, 40, 42, 46, 48, 52, 54, 58, 62, 68, 74, 80, 86, 90, 94, 96, 100, 102, 106, 108, 112, 114, 118, 122, 128, 134, 140, 146, 150, 154, 156, 160, 162, 166, 168, 172, 174, 178, 182, 188, 194, 200, 206, 210, 214, 216, 220, 222, 226, 228, 232, 234, 238, 242, 248, 254, 260, 266, 270, 274, 276

Offset

1,1

Links

Table of n, a(n) for n=1..68.

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); };
A353489(n) = (3==(A276086(n)%4));
isA353466(n) = A353489(n);

Crossrefs

Cf. A276086, A353486, A353489 (characteristic function).

Sequences A005408, A353465 and this sequence partition the natural numbers to three disjoint sets.

Sequence in context: A324691 A117104 A082933 * A016933 A294960 A101959

Adjacent sequences: A353463 A353464 A353465 * A353467 A353468 A353469

Keyword

nonn,base

Author

Antti Karttunen, Apr 24 2022

Status

approved