A351965 The odd part of A109812(n).

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

Links

Antti Karttunen, Table of n, a(n) for n = 1..100000

Index entries for sequences related to binary expansion of n

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));
A351965(n) = A000265(A109812(n));

Crossrefs

Cf. A000265, A109812, A351963, A351964, A352884 (binary weight).

Sequence in context: A096975 A145174 A372283 * A228785 A135184 A210224

Adjacent sequences: A351962 A351963 A351964 * A351966 A351967 A351968

Keyword

nonn,base

Author

Antti Karttunen, Apr 06 2022

Status

approved