A341488 a(0) = 1, and for any n > 0, a(n) = A341458(a(n-1), n).

1, 1, 2, 5, 8, 4, 2, 8, 1, 9, 25, 116, 8, 117, 25, 16, 1, 17, 25, 108, 8, 109, 25, 24, 1, 25, 2, 29, 8, 28, 2, 32, 1, 33, 97, 92, 8, 93, 97, 40, 1, 41, 122, 45, 8, 44, 122, 48, 1, 49, 122, 53, 8, 52, 122, 56, 1, 57, 97, 68, 8, 69, 97, 64, 1, 65, 97, 60, 8, 61

Offset

0,3

Comments

This sequence is an analog of the factorial function for the group described in A341458, and has interesting graphical features.

Links

Rémy Sigrist, Table of n, a(n) for n = 0..32769

Rémy Sigrist, PARI program for A341488

Formula

Apparently:

- a(n) = 1 iff n = 1 or n belongs to A008590,

- a(n) = n iff n belongs to A017077.

Prog

(PARI) See Links section.

Crossrefs

Cf. A000142, A008590, A017077, A341458.

Sequence in context: A075175 A075173 A163337 * A114550 A094001 A309252

Adjacent sequences: A341485 A341486 A341487 * A341489 A341490 A341491

Keyword

nonn,look,base

Author

Rémy Sigrist, Feb 13 2021

Status

approved