22422400

Appears in sequences

• Denominator of Sum_{i+j+k=n; i,j,k > 0} 1/(i*j*k).at n=13A002546
• Generalized Stirling2 array (5,2).at n=16A091534
• First column (k=2) of array A091534 ((5,2)-Stirling2).at n=4A091535
• Triangle built from first column sequences of generalized Stirling2 arrays (m+2,2)-Stirling2, m >= 0.at n=31A091543
• Generalized Stirling2 array (-1,2)S2. Irregular triangle a(n, m) for n >= 1 and 2 <= m <= 2*n.at n=27A091752
• Triangle, read by rows, where T(n,k) = n!/(k!*(n-3*k)!*3^k) for n>=3*k>=0.at n=44A118931