2157776

Appears in sequences

• Number of (n+6)X(n+6) 0..2 matrices with each 7X7 subblock idempotent.at n=3A224637
• Number of (n+6)X10 0..2 matrices with each 7X7 subblock idempotent.at n=3A224641
• T(n,k) = Number of (n+6) X (k+6) 0..2 matrices with each 7 X 7 subblock idempotent.at n=24A224642