A027213 Sum of squares of numbers in row n of array T given by A026725.

1, 2, 6, 27, 92, 440, 1556, 7514, 27082, 130883, 477258, 2303413, 8465592, 40783083, 150735628, 724837891, 2690363900, 12915186640, 48093650016, 230526280814, 860654319126, 4119854160332, 15413262342946, 73695109608352, 276180051478904, 1319136935150530, 4950605267226796

Offset

0,2

Links

Table of n, a(n) for n=0..26.

Maple

A027213 := proc(n)
    add( A026725(n, k)^2, k=0..n) ;
end proc: # R. J. Mathar, Oct 21 2019

Crossrefs

Sequence in context: A331751 A034565 A053687 * A027237 A027245 A387581

Adjacent sequences: A027210 A027211 A027212 * A027214 A027215 A027216

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 24 2019

Status

approved