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

0,3

Links

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

Crossrefs

Bisections are A000464 and A000816.

Sequence in context: A152895 A308524 A335629 * A290175 A377380 A154813

Adjacent sequences: A000819 A000820 A000821 * A000823 A000824 A000825

Keyword

nonn

Author

N. J. A. Sloane

Status

approved