A027452 Second diagonal of A027447.

7, 19, 37, 549, 364, 12700, 38025, 265825, 212464, 21019824, 17507700, 2502630900, 2144458800, 1858077936, 6501984489, 1657735504425, 1473342270400, 475835044484800, 428209840762704, 387395612954064, 352152440452800, 170078965146417600, 155897164961237700

Offset: 2

Author

Olivier Gérard

Keywords

• nonn

Formula

Numerators of sequence a(n, n-1) in (a(i, j))^3 where a(i, j) = 1/i if j <= i, 0 if j > i.

Extensions

More terms from Sean A. Irvine, Nov 04 2019