23733

Appears in sequences

• Square of the (3,1)-entry of the 3 X 3 matrix M^n, where M = [1,0,0; 1,1,0; 1,i,1].at n=17A125641
• G.f.: A(x) = Product_{n>=1} [ (1-x)^3*(1 + 3x + 6x^2 +...+ n(n+1)/2*x^(n-1)) ].at n=12A129356
• a(n) = n^3 - 3*(n+3)^2.at n=30A153260
• Number of series-reduced rooted trees whose leaves are multisets whose multiset union is a strongly normal multiset of size n.at n=6A330467
• Main diagonal of A332374.at n=16A332375
• Triangle read by rows, the Riordan square of the number of achiral m-color cyclic compositions of n (A308747). T(n,k) for 1 <= k <= n.at n=33A336452
• Numbers that are the sum of eight fourth powers in ten or more ways.at n=29A345585