73028

Appears in sequences

• a(n) = index of second occurrence of A161926(n) in A114381.at n=29A161927
• 1/4 the number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock having distinct edge sums.at n=8A209378
• 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=32A331570
• Number of nonnegative integer matrices with 3 distinct columns and any number of distinct nonzero rows with column sums n and columns in decreasing lexicographic order.at n=4A331707