A074652 1/n * sum over d|n of {mu(n/d) * (4d)! / d!^4}.

24, 1248, 123192, 15765120, 2346549000, 384790520160, 67502621079768, 12445136548416000, 2383639140696105600, 470536087106183748000, 95188348079916284698296, 19650775121845025331180672

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Index entries for sequences related to Lyndon words

Crossrefs

Inverse Witt transform of A006175. a(n) = A029809(n)*24. a(n) = A074656(n)*4.

Sequence in context: A042104 A069991 A035025 * A367706 A188807 A187029

Adjacent sequences: A074649 A074650 A074651 * A074653 A074654 A074655

Keyword

nonn

Author

Christian G. Bower, Aug 28 2002

Status

approved