1706012

Appears in sequences

• Number of (n+6)X9 0..1 matrices with each 7X7 subblock idempotent.at n=26A224583
• Number T(n,k) of endofunctions on [n] with exactly k cycles of length larger than 1; triangle T(n,k), n>=0, 0<=k<=floor(n/2), read by rows.at n=28A350446