A152395 Column 0 of the matrix square of triangle A152391.

1, 2, 10, 54, 324, 2130, 15102, 114282, 915016, 7701570, 67785410, 621241302, 5907779100, 58122866490, 590120962494, 6169755680850, 66300171884560, 731081377197218, 8260198332989274, 95504954267579062

Offset

0,2

Links

Table of n, a(n) for n=0..19.

Crossrefs

Cf. A152391; columns: A152392, A152393; A152394.

Sequence in context: A221604 A163909 A272178 * A369263 A365879 A202365

Adjacent sequences: A152392 A152393 A152394 * A152396 A152397 A152398

Keyword

nonn

Author

Paul D. Hanna, Dec 11 2008

Status

approved