Number of (5+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.
A252389
Number of (5+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) =785a(1) =637a(2) =799a(3) =916a(4) =1305a(5) =1894a(6) =2310a(7) =3280a(8) =4791a(9) =5934a(10) =8451a(11) =12386a(12) =15413a(13) =21987a(14) =32274a(15) =40226a(16) =57424a(17) =84343a(18) =105186a(19) =150199a(20) =220662a(21) =275253a(22) =393087a(23) =577550a(24) =720494a(25) =1028976a(26) =1511895a(27) =1886150a(28) =2693755a(29) =3958042
External references
- oeis: A252389