Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.
A253738
Number of (n+2)X(6+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.
Terms
- a(0) =70372a(1) =60296a(2) =102616a(3) =345304a(4) =1059528a(5) =3369876a(6) =11094376a(7) =37875928a(8) =127687424a(9) =433506104a(10) =1487290348a(11) =5103062308a(12) =17364021560a(13) =59364164632a(14) =203858329876a(15) =698483613236
External references
- oeis: A253738