9450000
domain: N
Appears in sequences
- Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*10^j.at n=32A038228
- Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*12^j.at n=30A038254
- Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*3^j.at n=31A038305
- Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*5^j.at n=33A038331
- Numbers k such that sigma(k)*phi(k)*k is a square.at n=30A114079
- a(n) = 5^n*(n+4)!/n!.at n=5A154128
- a(n) = (n+1)^5*(5+n)!/120.at n=4A154308
- Number of ways to form k labeled groups, each with a distinct leader, using n people. Triangle T(n,k) = n!*k^(n-k)/(n-k)! for 1 <= k <= n.at n=40A199673
- Triangle read by rows: T(n, k) = binomial(n, k - 1)*(k - 1)^(k - 1)*k*(n - k + 1)^(n - k).at n=42A369019