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A182018
Row square-sums of triangle A210658.
1
1, 5, 29, 219, 2011, 20911, 235543, 2801821, 34667941, 441977129, 5768828529, 76743400197, 1037119411309, 14202556969109, 196703352545189, 2751033268619879, 38804220883714919, 551466071408325299, 7889476725800450699, 113542652361590443679
OFFSET
0,2
FORMULA
a(n) = Sum_{k=0..n} (Sum_{i=k..n} A000108(i))^2.
MATHEMATICA
Table[Sum[Sum[Binomial[2i, i]/(i+1), {i, k, n}]^2, {k, 0, n}], {n, 0, 40}]
PROG
(Maxima) makelist(sum(sum(binomial(2*i, i)/(i+1), i, k, n)^2, k, 0, n), n, 0, 20);
CROSSREFS
Sequence in context: A057623 A356336 A352294 * A309260 A087662 A113012
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Apr 06 2012
STATUS
approved