A027156 a(n) = self-convolution of array T given by A027144.

4, 20, 88, 416, 2464, 12320, 73344, 373248, 2286080, 11768320, 72968192, 378533888, 2368397312, 12353986560, 77788119040, 407431675904, 2577750163456, 13544806547456, 86015627231232, 453128543010816, 2886172831383552

Offset

0,1

Links

Table of n, a(n) for n=0..20.

Crossrefs

Sequence in context: A320937 A196953 A093357 * A017964 A017965 A180284

Adjacent sequences: A027153 A027154 A027155 * A027157 A027158 A027159

Keyword

nonn

Author

Clark Kimberling

Status

approved