A118049 Row sums of triangle A118045; also equals a bisection of A118037, which is the antidiagonal sums of triangle A118032.

1, 5, 20, 73, 245, 770, 2319, 6666, 18574, 49909, 131011, 334703, 839703, 2061763, 4984321, 11838917, 27743676, 64017152, 145870081, 327993788, 729271170, 1601769539, 3480548548, 7482752383, 15933936346, 33593546659, 70181698046

Offset

0,2

Comments

Row sums of triangle A118045 equals the odd-indexed bisection of A118037. Row sums of triangle A118040 (matrix square of A118032) equals A118044, the even-indexed bisection of A118037.

Links

Table of n, a(n) for n=0..26.

Crossrefs

Cf. A118037; A118045 (triangle), A118046 (column 0), A118047 (column 1); A118048 (column 2); related triangles: A118032, A118040.

Sequence in context: A346398 A270080 A271136 * A114247 A272086 A006650

Adjacent sequences: A118046 A118047 A118048 * A118050 A118051 A118052

Keyword

nonn

Author

Paul D. Hanna, Apr 10 2006

Status

approved