A027522 - OEIS

A027522

First diagonal of A027517.

1, 1, 4, 9, 450, 14700, 23716, 11025, 5929, 3025, 27225, 14400, 42688800, 3870830656, 9109748025, 5288198400, 1599516800, 1903751424, 57588480576, 12696964358400, 7957646064900, 138654025034817600, 2784183915021140193408, 1052240403785569432896

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OFFSET

1,3

LINKS

Table of n, a(n) for n=1..24.

FORMULA

Numerators of sequence a[n, n] 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: A370610 A367451 A063248 * A330580 A254959 A028869

Adjacent sequences: A027519 A027520 A027521 * A027523 A027524 A027525

KEYWORD

nonn

AUTHOR

Olivier Gérard

EXTENSIONS

More terms from Sean A. Irvine, Nov 06 2019

STATUS

approved