15120000

Appears in sequences

• Triangle of generalized Stirling numbers S_{3,2}(n,k) read by rows (n>=1, 2<=k<=2n).at n=26A078740
• Second column (k=3) sequence of array A091746 ((6,2)-Stirling2) divided by 12.at n=3A091550
• Expansion of e.g.f. Product_{k>0} (1+k*x^k)^(-1/k).at n=10A294465
• Triangle read by rows: T(n,k) is the number of rows of n colors with exactly k different colors counting chiral pairs as equivalent, i.e., the rows are reversible.at n=52A305621
• Triangle read by rows: T(n,k) is the number of chiral pairs of rows of n colors with exactly k different colors.at n=52A305622
• Expansion of e.g.f. 1 / (exp(x^3) - x).at n=10A375609