Number of (7+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.
A252391
Number of (7+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) =1051a(1) =903a(2) =1114a(3) =1361a(4) =2031a(5) =2778a(6) =3495a(7) =5195a(8) =7123a(9) =9045a(10) =13466a(11) =18506a(12) =23568a(13) =35117a(14) =48310a(15) =61587a(16) =91799a(17) =126339a(18) =161121a(19) =240194a(20) =330622a(21) =421704a(22) =628697a(23) =865442a(24) =1103919a(25) =1645811a(26) =2265619a(27) =2889981a(28) =4308650a(29) =5931330
External references
- oeis: A252391