Number of (n+6)X9 0..2 matrices with each 7X7 subblock idempotent.
A224640
Number of (n+6)X9 0..2 matrices with each 7X7 subblock idempotent.
Terms
- a(0) =6162817a(1) =1477939a(2) =1800748a(3) =1978918a(4) =2061018a(5) =2097855a(6) =2114887a(7) =2124211a(8) =2665911a(9) =3563511
External references
- oeis: A224640