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A336698
a(n) = A000265(1+A000265(sigma(n))), where A000265(k) gives the odd part of k.
15
1, 1, 1, 1, 1, 1, 1, 1, 7, 5, 1, 1, 1, 1, 1, 1, 5, 5, 3, 11, 1, 5, 1, 1, 1, 11, 3, 1, 1, 5, 1, 1, 1, 7, 1, 23, 5, 1, 1, 23, 11, 1, 3, 11, 5, 5, 1, 1, 29, 47, 5, 25, 7, 1, 5, 1, 3, 23, 1, 11, 1, 1, 7, 1, 11, 5, 9, 1, 1, 5, 5, 49, 19, 29, 1, 9, 1, 11, 3, 47, 61, 1, 11, 1, 7, 17, 1, 23, 23, 59, 1, 11, 1, 5, 1, 1, 25
OFFSET
1,9
FORMULA
a(n) = A000265(1+A000265(A000203(n))) = A000265(1+A161942(n)).
a(A000265(n)) = A336699(n).
PROG
(PARI)
A000265(n) = (n>>valuation(n, 2));
A336698(n) = A000265(1+A000265(sigma(n)));
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Aug 02 2020
STATUS
approved