78040

Appears in sequences

• a(n) = 2n*a(n-1) - (n-1)^2*a(n-2).at n=7A002793
• Numerators of continued fraction for alternating factorial.at n=14A056952
• Number of maximal sets of partitions of n with property that all parts in all partitions in the set are distinct.at n=29A068598
• a(n) = 40*(200*n - 49).at n=9A157652
• Number of inequivalent n X 4 binary matrices, where equivalence means permutations of rows or columns or the symbol set.at n=10A246149
• Number of inequivalent n X 10 binary matrices, where equivalence means permutations of rows or columns or the symbol set.at n=4A246155