A118911 - OEIS

A118911

Row sums of triangle in A128973.

1, 1, 3, 3, 3, 3, 5, 5, 3, 3, 9, 9, 5, 5, 11, 11, 3, 3, 9, 9, 9, 9, 15, 15, 5, 5, 15, 15, 11, 11, 21, 21, 3, 3, 9, 9, 9, 9, 15, 15, 9, 9, 27, 27, 15, 15, 33, 33, 5, 5, 15, 15, 15, 15, 25, 25, 11, 11, 33, 33, 21, 21, 43, 43, 3, 3, 9, 9, 9, 9, 15, 15, 9, 9, 27, 27, 15, 15, 33, 33, 9, 9

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OFFSET

0,3

COMMENTS

Integers in A071053 repeated.

LINKS

Table of n, a(n) for n=0..81.

FORMULA

a(2*n) = a(2*n+1).

a(n) = Sum_{k=0..n} A128973(n,k).

a(2^k+m) = 3*a(m) for 0 <= m <= 2^(k-1) - 1, k >= 1.

a(4*n) = a(2*n) = A071053(n).