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A290092
Filter based on 2-digits of base-3 expansion: a(n) = A278222(A289814(n)).
6
1, 1, 2, 1, 1, 2, 2, 2, 4, 1, 1, 2, 1, 1, 2, 2, 2, 4, 2, 2, 6, 2, 2, 6, 4, 4, 8, 1, 1, 2, 1, 1, 2, 2, 2, 4, 1, 1, 2, 1, 1, 2, 2, 2, 4, 2, 2, 6, 2, 2, 6, 4, 4, 8, 2, 2, 6, 2, 2, 6, 6, 6, 12, 2, 2, 6, 2, 2, 6, 6, 6, 12, 4, 4, 12, 4, 4, 12, 8, 8, 16, 1, 1, 2, 1, 1, 2, 2, 2, 4, 1, 1, 2, 1, 1, 2, 2, 2, 4, 2, 2, 6, 2, 2, 6, 4, 4, 8, 1, 1, 2, 1
OFFSET
0,3
LINKS
FORMULA
a(n) = A278222(A289814(n)).
PROG
(Scheme) (define (A290092 n) (A278222 (A289814 n)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jul 25 2017
STATUS
approved