A027523 Second diagonal of A027517.

7, 19, 49, 1962, 74100, 100156, 50911, 25039, 13189, 111925, 61425, 172130400, 15960298816, 36469482889, 21338706825, 6300137600, 7570610944, 224166730176, 49733337790656, 30706373873700, 536003165993469300, 10639031491061081605728, 4030033479941966540736

Offset

2,1

Links

Table of n, a(n) for n=2..24.

Formula

Numerators of sequence a[n, n-1] in A=(b[i, j])^3 where b[i, j] = A008284(i, j) / Partitions(i) if j<=i, 0 if j>i.

Crossrefs

Sequence in context: A348472 A003232 A018728 * A100545 A203165 A332364

Adjacent sequences: A027520 A027521 A027522 * A027524 A027525 A027526

Keyword

nonn

Author

Olivier Gérard

Extensions

More terms from Sean A. Irvine, Nov 06 2019

Status

approved