1631700
domain: N
Appears in sequences
- a(n) = n*(n-1)*(n-2)^2.at n=35A047927
- Number T(n,m) of n X m matrices over {0,1,2} with all row and column sums equal to 1 or 2, m=0,..,2*n.at n=32A062154
- Triangle read by rows: T(n,h)/(n-1), where T is the array in A101819.at n=31A101820
- Column 3 of triangle A123610.at n=34A123613
- Numbers with prime factorization pq^2r^2s^2t^2.at n=12A190387