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A341488
a(0) = 1, and for any n > 0, a(n) = A341458(a(n-1), n).
1
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
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
KEYWORD
nonn,look,base
AUTHOR
Rémy Sigrist, Feb 13 2021
STATUS
approved