Number of (4+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.
A252388
Number of (4+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 3 5 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 3 5 6 or 7.
Terms
- a(0) =651a(1) =570a(2) =616a(3) =744a(4) =1091a(5) =1475a(6) =1880a(7) =2734a(8) =3712a(9) =4817a(10) =7023a(11) =9576a(12) =12499a(13) =18249a(14) =24931a(15) =32608a(16) =47638a(17) =65132a(18) =85253a(19) =124579a(20) =170380a(21) =223079a(22) =326013a(23) =445923a(24) =583912a(25) =853374a(26) =1167304a(27) =1528585a(28) =2234023a(29) =3055904
External references
- oeis: A252388