A118048 Column 2 of triangle A118045; also equals a bisection of A118035, which is column 2 of A118032.

3, 15, 57, 192, 567, 1683, 4392, 12084, 29073, 75753, 172269, 430248, 938784, 2272308, 4793652, 11202642, 22952439, 52535655, 105206253, 233047158, 455660913, 996014343, 1917372474, 4062940566, 7660442568, 16114463106

Offset

0,1

Comments

Triangle A118045 is a diagonal bisection of triangle A118032.

Links

Table of n, a(n) for n=0..25.

Crossrefs

Cf. A118035; A118045 (triangle), A118046 (column 0), A118047 (column 1); A118049 (row sums); related triangles: A118032, A118040.

Sequence in context: A049187 A049161 A358685 * A210448 A284699 A218657

Adjacent sequences: A118045 A118046 A118047 * A118049 A118050 A118051

Keyword

nonn

Author

Paul D. Hanna, Apr 10 2006

Status

approved