A025536 a(n) = (1/C(n,0) - 1/C(n,1) + ... + d/C(n,k))*L, where d = (-1)^k,k = [ n/2 ], L = LCM{C(n,0), C(n,1),..., C(n,n)}.

1, 1, 1, 2, 11, 9, 51, 92, 254, 230, 2305, 2130, 25755, 24031, 22519, 42392, 680708, 644868, 11639502, 11085300, 10581510, 10121430, 223092705, 214169076, 1029659598, 991523962, 2868336757, 2769428662, 77636319761, 75131921865, 2256305506455

Offset

0,4

Links

Table of n, a(n) for n=0..30.

Crossrefs

Sequence in context: A009258 A009204 A023642 * A162155 A163344 A064743

Adjacent sequences: A025533 A025534 A025535 * A025537 A025538 A025539

Keyword

nonn

Author

Clark Kimberling

Status

approved