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a(n) = A127714(n, n*(n+1)/2).
2

%I #6 May 11 2014 22:41:01

%S 1,1,3,11,72,473,3727,39646,412679,4765654,61015451,937386045,

%T 14126033578,227901084348,3941375013541,72677938745613,

%U 1517730017193292,31249446089387086,675658943143264102,15356377683044270187

%N a(n) = A127714(n, n*(n+1)/2).

%C Triangle A127714 has (n+1)*(n+2)/2 terms in row n for n>=0. A127715 forms the rightmost border of triangle A127714.

%Y Cf. A127714, A127715.

%K nonn

%O 0,3

%A _Paul D. Hanna_, Jan 24 2007