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%I #6 Nov 12 2012 17:18:36
%S 0,3,19,59,134,255,433,679,1004,1419,1935,2563,3314,4199,5229,6415,
%T 7768,9299,11019,12939,15070,17423,20009,22839,25924,29275,32903,
%U 36819,41034,45559,50405,55583,61104,66979,73219,79835,86838,94239,102049,110279,118940
%N n * (11*n^2 + 6*n + 1) / 6.
%C For n > 0: sums of rows of triangle in A215631.
%o (Haskell)
%o a215646 n = n * (n * (11*n + 6) + 1) `div` 6
%o (Maxima) A215646(n):=n*(11*n^2+6*n+1)/6$
%o makelist(A215646(n),n,0,20); /* _Martin Ettl_, Nov 12 2012 */
%K nonn
%O 0,2
%A _Reinhard Zumkeller_, Nov 11 2012
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