A152401 Column 1 of triangle A152400; also, column 1 of square array A152405.

1, 2, 8, 45, 318, 2671, 25805, 280609, 3381993, 44658052, 640279918, 9895457035, 163871617543, 2893296199441, 54230087607409, 1075060346670798, 22467666780553040, 493590689966427930, 11369641989418301977

Offset: 0

Author

Paul D. Hanna, Dec 05 2008

Keywords

• nonn

Comments

Matrix powers of triangle T=A152400 satisfy: column k of T^(j+1) = column j of T^(k+1) for all j>=0, k>=0.

Links

• Paul D. Hanna, Table of n, a(n), n=0..100.

Crossrefs

Cf. A152400; A127715, A152402, A152403, A152404; A152405.