A027315 Self-convolution of array T given by A026082.

1, 2, 6, 20, 90, 692, 5774, 48924, 417440, 3580036, 30831756, 266463804, 2309848194, 20074999500, 174867895438, 1526259877412, 13344806416950, 116863477094660, 1024844657752730, 8998915251701628, 79108591391227406, 696167664755023388, 6132277201334483178

Offset

0,2

Comments

Equivalently, sum of squares of numbers in row n of array T given by A026082.

Links

Table of n, a(n) for n=0..22.

Crossrefs

Sequence in context: A000666 A180890 A027321 * A005965 A000421 A009244

Adjacent sequences: A027312 A027313 A027314 * A027316 A027317 A027318

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 27 2019

Status

approved