This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A126451 #10 Sep 08 2022 08:45:29
%S A126451 1,2,10,165,5985,376992,36288252,4935847320,899749479915,
%T A126451 211531737340440,62292206224983306,22453501436688294427,
%U A126451 9723205992282927449305,4980663327690172963041600,2978877731799385928100461400,2057145404864429538334152506640
%N A126451 Column 0 of triangle A126450; a(n) = C( C(n+2,3) + 1, n).
%H A126451 Vincenzo Librandi, <a href="/A126451/b126451.txt">Table of n, a(n) for n = 0..200</a>
%t A126451 Table[Binomial[Binomial[n+2,3]+1,n],{n,0,20}] (* _Harvey P. Dale_, Mar 08 2014 *)
%o A126451 (PARI) a(n)=binomial(n*(n+1)*(n+2)/3!+1, n)
%o A126451 (Magma) [Binomial(Binomial(n+2,3)+1,n): n in [0..20]]; // _Vincenzo Librandi_, Mar 10 2014
%Y A126451 Cf. A126450; A126452, A126453; A126446, A126455, A126458.
%K A126451 nonn
%O A126451 0,2
%A A126451 _Paul D. Hanna_, Dec 27 2006
%E A126451 More terms from _Harvey P. Dale_, Mar 08 2014