Number of (n+2) X 6 0..2 arrays with each 3 X 3 subblock having a sum of 9.
A187643
Number of (n+2) X 6 0..2 arrays with each 3 X 3 subblock having a sum of 9.
Terms
- a(0) =596653a(1) =1747075a(2) =5273797a(3) =17048731a(4) =67476109a(5) =275808307a(6) =1180360357a(7) =5652251635a(8) =27729452461a(9) =140207992699a(10) =758880838813
External references
- oeis: A187643