30960

Appears in sequences

• 2nd differences of factorial numbers.at n=6A001564
• Decimal part of cube root of a(n) starts with 4: first term of runs.at n=30A034130
• Triangular array formed from successive differences of factorial numbers.at n=38A047920
• E.g.f. 1/(1-x-2*x^2).at n=6A052585
• Triangle T[n,m]: T[n,-1] = 0; T[0,0] = 0; T[n,0] = n*n!; T[n,m] = T[n,m-1] - T[n-1,m-1].at n=29A061312
• Euler's difference table: triangle read by rows, formed by starting with factorial numbers (A000142) and repeatedly taking differences. T(n,n) = n!, T(n,k) = T(n,k+1) - T(n-1,k).at n=42A068106
• Numbers k such that 2k-1 divides 2^k-1.at n=20A081856
• A square array of quadratic-factorial numbers, read by antidiagonals.at n=34A082038
• Triangle read by rows of coefficients used to generate diagonals of ordered factorizations as displayed in A098348.at n=17A098384
• Binomial transform of the expansion of 1/(1-x^5-x^6).at n=16A107025
• A Jacobsthal number related number triangle.at n=21A110321
• a(n) = 16*n*(n+2).at n=43A114444
• Difference triangle of factorial numbers read by upward diagonals.at n=33A116853
• First differences of the rows in the triangle of A116853, starting with 0.at n=42A116854
• Triangle of rank k of permutations of {1,2,...,n}.at n=47A134830
• Number of permutations of length n within distance 6.at n=8A154655
• a(n) = 64*n^2 - 16.at n=21A157913
• a(n) = 121*n^2 - n.at n=15A157960
• a(n) = 484*n^2 - 2*n.at n=7A158329
• a(n) = 256*n^2 - 16.at n=10A158562