A026946 Self-convolution of array T given by A026374.

1, 2, 11, 34, 195, 678, 3989, 14494, 86515, 321590, 1936881, 7301142, 44241261, 168359754, 1024642875, 3926147730, 23973456915, 92338836390, 565280386625, 2186194166950, 13411044301945, 52037098259090, 319756851757695, 1244063987615130, 7655279183309725, 29851422385561898

Offset

0,2

Links

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

Crossrefs

Sequence in context: A026981 A027223 A027229 * A204452 A337640 A041389

Adjacent sequences: A026943 A026944 A026945 * A026947 A026948 A026949

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 17 2019

Status

approved