Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.
A252251
Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.
Terms
- a(0) =463a(1) =302a(2) =279a(3) =297a(4) =327a(5) =366a(6) =414a(7) =492a(8) =594a(9) =720a(10) =924a(11) =1191a(12) =1521a(13) =2055a(14) =2754a(15) =3618a(16) =5016a(17) =6846a(18) =9108a(19) =12768a(20) =17559a(21) =23481a(22) =33063a(23) =45606a(24) =61110a(25) =86196a(26) =119034a(27) =159624a(28) =225300a(29) =311271
External references
- oeis: A252251