65304

Appears in sequences

• E.g.f.: 24*exp(x)/(1-x)^5.at n=4A001342
• a(n) = Sum_{k = 0..4} (n+k)! C(4,k).at n=5A001346
• Numbers k such that sopf(k) = sopf(k^2 - 1), where sopf(k) = A008472(k).at n=16A064019
• Binomial triangle based on factorials.at n=40A076571
• a(n) = Sum_{k=0..n} C(n,k)*(2*n-k)!.at n=4A099022
• Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having four, six or seven distinct values for every i,j,k<=n.at n=7A211737
• a(n) = Sum_{i=0..(n+1)/2} binomial(2*i+1,i)*binomial(2*n-2*i,n)/(2*i+1).at n=9A270490
• Square array A(row,col) = Sum_{k=0..row} binomial(row,k)*(1+col+k)!, read by descending antidiagonals as A(0,0), A(0,1), A(1,0), A(0,2), A(1,1), A(2,0), ...at n=32A276588
• Transpose of A276588.at n=31A276589