8408400

Appears in sequences

• a(n) = (5*n)!/((2*n)!*(n!)^3).at n=3A001460
• n!/A124900(n).at n=14A124902
• Triangle read by rows: T(n,m) is the number of inequivalent n X m matrices under action of the Klein group, with one-fifth of 1s, 2s, 3s, 4s and 5s (ordered occurrences rounded up/down if n*m != 0 mod 5).at n=30A287021
• Number of partitions of [n] whose blocks are ordered with increasing least elements and where block i (except possibly the last) has size i.at n=18A362639
• Number of partitions of [n] such that the number of blocks of size k is zero or equals k for every k.at n=14A374321