1978918

Appears in sequences

• Number of (n+6)X9 0..2 matrices with each 7X7 subblock idempotent.at n=3A224640
• Number of (n+6)X10 0..2 matrices with each 7X7 subblock idempotent.at n=2A224641
• T(n,k) = Number of (n+6) X (k+6) 0..2 matrices with each 7 X 7 subblock idempotent.at n=17A224642
• T(n,k) = Number of (n+6) X (k+6) 0..2 matrices with each 7 X 7 subblock idempotent.at n=18A224642