A132796 Second diagonal of Gely numbers.

0, 1, 0, 5, 6, 21, 36, 85, 162, 341, 672, 1365, 2718, 5461, 10908, 21845, 43674, 87381, 174744, 349525, 699030, 1398101, 2796180, 5592405, 11184786, 22369621, 44739216, 89478485, 178956942, 357913941, 715827852

Offset

0,4

References

Charles 0. Gely, Un tableau de conversion des polynomes cyclotomiques cousin des nombres Euleriens, Preprint Univ. Paris 7, 1999.

Olivier Gérard, Quelques facons originales de compter les permutations, submitted to Knuth07.

Olivier Gérard and Karol Penson, Set partitions, Multiset permutations and bi-permutations, in preparation.

Links

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

Formula

G(n,n-1)= Sum((-1)^j (n+1 choose j) ((n-1-j)^(n+1)-1)/(n-1-j-1= ), 0<=j<=n-1).

Crossrefs

Second diagonal of A132795.

Sequence in context: A060423 A037951 A095308 * A006492 A110344 A224915

Adjacent sequences: A132793 A132794 A132795 * A132797 A132798 A132799

Keyword

nonn,easy

Author

Olivier Gérard, Aug 31, 2007

Status

approved