Number of (n+2) X (3+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.
A252379
Number of (n+2) X (3+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) =1359a(1) =647a(2) =632a(3) =616a(4) =799a(5) =984a(6) =1114a(7) =1541a(8) =2007a(9) =2417a(10) =3483a(11) =4686a(12) =5828a(13) =8567a(14) =11700a(15) =14758a(16) =21877a(17) =30063a(18) =38137a(19) =56723a(20) =78138a(21) =99344a(22) =147951a(23) =204000a(24) =259586a(25) =386789a(26) =533511a(27) =679105a(28) =1012075a(29) =1396182
External references
- oeis: A252379