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A266188
a(n) = A004001(A087686(n)).
4
1, 1, 2, 4, 4, 7, 8, 8, 8, 12, 14, 15, 15, 16, 16, 16, 16, 21, 24, 26, 27, 27, 29, 30, 30, 31, 31, 31, 32, 32, 32, 32, 32, 38, 42, 45, 47, 48, 48, 51, 53, 54, 54, 56, 57, 57, 58, 58, 58, 60, 61, 61, 62, 62, 62, 63, 63, 63, 63, 64, 64, 64, 64, 64, 64, 71, 76, 80, 83, 85, 86, 86, 90, 93, 95, 96, 96, 99, 101, 102, 102, 104
OFFSET
1,3
COMMENTS
Discarding duplicates gives A087686 back, i.e., this set of numbers is closed with respect to A004001.
LINKS
FORMULA
a(n) = A004001(A087686(n)).
PROG
(Scheme) (define (A266188 n) (A004001 (A087686 n)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 10 2016
STATUS
approved