The On-Line Encyclopedia of Integer Sequences (OEIS)

A027449 revision #7

A027449

Second diagonal of A027446.

3, 5, 7, 27, 22, 130, 225, 595, 532, 5292, 4830, 57750, 53460, 49764, 93093, 1486485, 1401400, 25185160, 23891868, 22724988, 21666840, 476166600, 455885430, 2186310126, 2100505176, 6063549800, 5842908500, 163495203300, 157949751960, 4735815444360

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OFFSET

2,1

LINKS

Table of n, a(n) for n=2..31.

FORMULA

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

CROSSREFS

Sequence in context: A294924 A374430 A249544 * A126670 A126669 A126668

Adjacent sequences: A027446 A027447 A027448 * A027450 A027451 A027452

KEYWORD

nonn

AUTHOR

Olivier Gérard

EXTENSIONS

More terms from Sean A. Irvine, Nov 04 2019

STATUS

proposed