A000822 Expansion of (sin^2 x + sin x) /cos 2x.

0, 1, 2, 11, 40, 361, 1952, 24611, 177280, 2873041, 25866752, 512343611, 5535262720, 129570724921, 1633165156352, 44110959165011, 635421069967360, 19450718635716001, 315212388819402752, 10784052561125704811

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• R. J. Mathar, Table of n, a(n) for n = 0..177

Crossrefs

Bisections are A000464 and A000816.