login
A280509
a(n) = A051064(A246200(n)); 3-adic valuation of A057889(3*n).
3
1, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 4, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 2, 4, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 3, 1, 1, 2, 1, 1, 5, 1, 2, 3, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 4, 1, 1, 2, 2, 1, 1, 3, 1, 1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 4, 1, 1, 2, 1, 1, 2, 2
OFFSET
1,3
LINKS
FORMULA
a(n) = A007949(A057889(3*n)).
a(n) = A051064(A246200(n)).
PROG
(Scheme) (define (A280509 n) (A051064 (A246200 n)))
CROSSREFS
Differs from A051064 for the first time at n=23, where a(23) = 4, while A051064(23) = 1.
Cf. also A265331.
Sequence in context: A241153 A213852 A051064 * A153096 A343407 A359236
KEYWORD
nonn,base,changed
AUTHOR
Antti Karttunen, Jan 09 2017
STATUS
approved