A027499 Second diagonal of A027495.

3, 21, 48, 134, 11475, 1263600, 52959452, 33442462092, 187693150315320, 13385648916513731, 160581632111860199668428, 64508290858687331818199484720, 62555685466184409014242480885950

Offset

2,1

Links

Table of n, a(n) for n=2..14.

Formula

Numerators of sequence a[ n, n-1 ] in (a[ i, j ])^2 where a[ i, j ] = S(i, j)/BellNumber(i) if j<=i, 0 if j>i

Crossrefs

Sequence in context: A034186 A318211 A219069 * A303834 A340687 A152773

Adjacent sequences: A027496 A027497 A027498 * A027500 A027501 A027502

Keyword

nonn

Author

Olivier Gérard

Status

approved