144970

Appears in sequences

• Expansion of Product_{k>=1} 1/(1-x^k)^(k+(-1)^k).at n=23A258386
• Expansion of e.g.f. Product_{k>=1} 1/(1 - log(1/(1 - x))^k/k!).at n=7A307525
• Array read by antidiagonals: A(n,k) is the number of nonnegative integer matrices with k distinct columns and any number of distinct nonzero rows with column sums n and columns in decreasing lexicographic order.at n=38A331570
• Number of nonnegative integer matrices with n distinct columns and any number of distinct nonzero rows with column sums 2 and columns in decreasing lexicographic order.at n=6A331704