146715

Appears in sequences

• Number of (n+6)X7 0..1 matrices with each 7X7 subblock idempotent.at n=6A224581
• Number of (n+6)X13 0..1 matrices with each 7X7 subblock idempotent.at n=0A224587
• T(n,k)=Number of (n+6)X(k+6) 0..1 matrices with each 7X7 subblock idempotent.at n=21A224588
• T(n,k)=Number of (n+6)X(k+6) 0..1 matrices with each 7X7 subblock idempotent.at n=27A224588
• Number of non-equivalent ways to place 3 non-attacking ferses on an n X n board.at n=13A278682