A152403 Column 3 of triangle A152400.

1, 4, 24, 182, 1636, 16844, 194384, 2476868, 34461956, 519070980, 8405444924, 145502477888, 2679656009072, 52289220500822, 1077289873778412, 23361106832257087, 531744673834247758, 12673569230875132668

Offset

0,2

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

Table of n, a(n) for n=0..17.

Crossrefs

Cf. A152400; A127715, A152401, A152402, A152404; A152405.

Sequence in context: A361594 A061720 A197472 * A111556 A300736 A226738

Adjacent sequences: A152400 A152401 A152402 * A152404 A152405 A152406

Keyword

nonn

Author

Paul D. Hanna, Dec 05 2008

Status

approved