A026971 Self-convolution of array T given by A026648.

1, 2, 11, 34, 138, 492, 2342, 8500, 39814, 148124, 709266, 2665932, 12824196, 48623448, 235400988, 897705096, 4362689862, 16713200556, 81488683874, 313281535180, 1531312911148, 5903966489576, 28918583700468, 111757786454424, 548352142452124, 2123323536391448

Offset

0,2

Links

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

Crossrefs

Sequence in context: A209033 A222650 A026961 * A323683 A071801 A026981

Adjacent sequences: A026968 A026969 A026970 * A026972 A026973 A026974

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 20 2019

Status

approved