78379

Appears in sequences

• Triangle T(n,k) read by rows: T(n,k) = (m*n - m*k + 1)*T(n - 1, k - 1) + k*(m*k - (m - 1))*T(n - 1, k) where m = 2.at n=29A166961
• Number of (n+2) X 3 0..1 matrices with each 3 X 3 subblock idempotent.at n=16A224552