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A353486
Primorial base exp-function reduced modulo 4.
12
1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 2
OFFSET
0,2
COMMENTS
There are no zeros because A276086 is a permutation of A048103.
FORMULA
a(n) = A010873(A276086(n)).
For n >= 1, a(n) = A010873(A353516(n) * A353526(n)).
For all n >= 0, a(2n) = A353487(n), a(2n+1) = 2.
PROG
(PARI)
A276086(n) = { my(m=1, p=2); while(n, m *= (p^(n%p)); n = n\p; p = nextprime(1+p)); (m); };
A353486(n) = (A276086(n)%4);
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Antti Karttunen, Apr 24 2022
STATUS
approved