A056922 Denominators of continued fraction for alternating factorial.

1, 1, 2, 3, 8, 11, 41, 52, 249, 301, 1754, 2055, 14084, 16139, 127057, 143196, 1272625, 1415821, 14015014, 15430835, 168323364, 183754199, 2189619553, 2373373752, 30670104577, 33043478329, 460235322854, 493278801183

Offset

0,3

Links

Seiichi Manyama, Table of n, a(n) for n = 0..897

Formula

a(0)=1; a(1)=1; a(2*n) = n*a(2*n-1) + a(2*n-2); a(2*n+1) = a(2*n) + a(2*n-1).

Crossrefs

Cf. A058799, A056952 (numerators).

Sequence in context: A119199 A119197 A119185 * A101579 A041711 A127939

Adjacent sequences: A056919 A056920 A056921 * A056923 A056924 A056925

Keyword

frac,easy,nonn

Author

Aleksandar Petojevic, Sep 05 2000

Extensions

More terms from James A. Sellers, Sep 07 2000

Status

approved