5921520

Appears in sequences

• Number of simplices in barycentric subdivision of n-simplex.at n=4A005464
• a(n) = 5^(n-1) - 4*4^(n-1) + 6*3^(n-1) - 4*2^(n-1) + 1 (essentially Stirling numbers of second kind).at n=10A028245
• G.f.: Sum_{n>=0} n^(2*n) * x^n / (1 + n^2*x)^n.at n=5A243227
• Triangle read by rows: the positive terms of A163626.at n=32A249163
• Triangle T(n, k) read by rows: T(n, k) = S2(n, k)*k! + S2(n, k-1)*(k-1)! with the Stirling2 triangle S2 = A048993.at n=60A285867