A134764 A054525 * A000984.

1, 1, 5, 18, 69, 245, 923, 3412, 12864, 48549, 184755, 705162, 2704155, 10399675, 40116525, 155114088, 601080389, 2333593104, 9075135299, 35345215162, 137846527891, 538257689683, 2104098963719, 8233430018756, 32247603683030

Offset

1,3

Links

Table of n, a(n) for n=1..25.

Formula

Möbius transform of A000984.

Example

a(4) = 18 = (0, -1, 0, 1) dot (1, 2, 6, 20), where A000984 = (1, 2, 6, 20, 70, 252, ...) and (0, -1, 0, 1) = row 4 of triangle A054525.

Maple

read("transforms") : A000984 := proc(n) binomial(2*n, n) ; end: a000984 := [seq(A000984(n), n=0..50)] ; a134764 := MOBIUS(a000984) ; for i from 1 to nops(a134764) do printf("%d, ", op(i, a134764)) ; od: # R. J. Mathar, Jan 19 2009

Crossrefs

Cf. A000984, A054525.

Sequence in context: A199843 A109438 A164051 * A188177 A343490 A302077

Adjacent sequences: A134761 A134762 A134763 * A134765 A134766 A134767

Keyword

nonn

Author

Gary W. Adamson, Nov 09 2007

Extensions

More terms from R. J. Mathar, Jan 19 2009

Status

approved