Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1.
A255144
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 1 and no column sum 1.
Terms
- a(0) =302a(1) =1310a(2) =6271a(3) =29731a(4) =143993a(5) =706102a(6) =3459923a(7) =16957488a(8) =83205092a(9) =408315639a(10) =2003566051a(11) =9831961991a(12) =48249518620a(13) =236778459253
External references
- oeis: A255144