A027542 Second diagonal of A027538.

7, 52, 231, 806, 2451, 6840, 18031, 45682, 112443, 270788, 641031, 1496574, 3453859, 7893232, 17886687, 40233578, 89908875, 199746108, 441441655, 970971190, 2126500467, 4638886952, 10083091791, 21843918306, 47177512411, 101602798900, 218238002151, 467614538222

Offset: 2

Author

Olivier Gérard

Keywords

• nonn

Formula

Numerators of sequence a[n, n-1] in A=(b[i, j])^3 where b[i, j] = A008292(i, j) / i! if j<=i, 0 if j>i.

Extensions

More terms from Sean A. Irvine, Nov 07 2019