A108337 Positions of the odd terms in A084202, which gives the coefficients b(n) such that (B(x))^2 has coefficients 1 and 2.

0, 1, 3, 5, 6, 13, 15, 16, 18, 25, 26, 28, 30, 31, 63, 65, 66, 68, 75, 76, 80, 82, 83, 85, 86, 87, 88, 90, 92, 96, 97, 99, 100, 101, 107, 108, 110, 113, 114, 115, 117, 118, 120, 121, 122, 130, 131, 132, 136, 137, 139, 141, 143, 144, 145, 147, 149, 150

Offset: 0

Author

N. J. A. Sloane, Jul 02 2005

Keywords

• nonn

Comments

Also positions of 1's in A108336, which gives the coefficients of b(n) such that (B(x))^2 has coefficients 1 or 2 mod 4.

Equals A108783(n)/2.

Extensions

Additional comments from Nadia Heninger, Jul 14 2007