A027456 Third diagonal of A027448.

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

Offset

3,1

Links

Table of n, a(n) for n=3..20.

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.

Crossrefs

Cf. A027448.

Sequence in context: A321052 A369625 A291133 * A158372 A230353 A233482

Adjacent sequences: A027453 A027454 A027455 * A027457 A027458 A027459

Keyword

nonn

Author

Olivier Gérard

Extensions

More terms from Sean A. Irvine, Nov 04 2019

Status

approved