A027456 Third diagonal of A027448.

575, 865, 39743, 19153, 3681784, 18198125, 325151875, 226462663, 218431158848, 163390785768, 275577122835000, 216187828065000, 172736941569984, 1121674137386517, 4534605234349771581, 3776294388104363125, 21799582086436073920000, 18520810592837638076992

Offset: 3

Author

Olivier Gérard

Keywords

• nonn

Crossrefs

Cf. A027448.

Formula

Numerators of sequence a[ n, n-2 ] in (a[ i, j ])^4 where a[ i, j ] = 1/i if j<=i, 0 if j>i.

Extensions

More terms from Sean A. Irvine, Nov 04 2019