A185625 Column 0 of triangle A185624; also, equals row sums of triangle A185620.

1, 2, 3, 6, 18, 79, 463, 3396, 30073, 314037, 3796561, 52332869, 812013163, 14029926801, 267461387125, 5581705418715, 126657160962835, 3106644875467396, 81943115662983569, 2313753122033185373, 69654973411269008826, 2227679407193350385775

Offset: 0

Author

Paul D. Hanna, Sep 07 2011

Keywords

• nonn

Comments

Triangle A185624 equals the matrix square of triangle R = A185620, which satisfies: R^3 - R^2 + I = R shifted left one column.

Crossrefs

Cf. A185620, A185624, A185626, A185627, A185628.