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A351965
The odd part of A109812(n).
5
1, 1, 1, 3, 1, 5, 5, 1, 3, 9, 9, 3, 17, 7, 1, 7, 3, 33, 5, 11, 9, 19, 5, 21, 17, 13, 3, 15, 1, 11, 41, 33, 25, 19, 65, 13, 37, 9, 23, 3, 27, 17, 35, 7, 67, 11, 5, 39, 11, 1, 29, 49, 129, 15, 97, 65, 45, 41, 33, 21, 69, 25, 73, 13, 37, 49, 35, 7, 71, 17, 51, 19, 131, 15, 3, 31, 5, 75, 9, 43, 21, 137, 27, 193, 23, 81
OFFSET
1,4
FORMULA
a(n) = A000265(A109812(n)).
a(n) = A109812(n) / (2^A351964(n)).
PROG
(PARI)
v109812 = readvec("b109812_to10e5.txt"); \\ Prepared from b-file data with gawk ' { print $2 } '
up_to = #v109812;
A109812(n) = v109812[n];
A000265(n) = (n>>valuation(n, 2));
CROSSREFS
Cf. A000265, A109812, A351963, A351964, A352884 (binary weight).
Sequence in context: A096975 A145174 A372283 * A228785 A135184 A210224
KEYWORD
nonn,base
AUTHOR
Antti Karttunen, Apr 06 2022
STATUS
approved