Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.
A255086
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 0.
Terms
- a(0) =623a(1) =964a(2) =1824a(3) =3696a(4) =8631a(5) =20972a(6) =50587a(7) =121381a(8) =289648a(9) =701088a(10) =1737609a(11) =4327355a(12) =10735123a(13) =26444233a(14) =64662794a(15) =158688694a(16) =392717716a(17) =975036966a(18) =2421077247a(19) =5990164156a(20) =14752122313a(21) =36347205053a(22) =89808485699a(23) =222347952612
External references
- oeis: A255086