64310

Appears in sequences

• Number of nonsingular n X n matrices with rational entries equal to 0 or 1, up to row and column permutations.at n=5A116976
• Number of -3..3 arrays x(0..n-1) of n elements with zero sum and elements alternately strictly increasing and strictly decreasing.at n=8A200052
• Number of binary words of length n with three times as many occurrences of subword 101 as occurrences of subword 010.at n=20A307795