Number of n X 4 0..1 arrays with each 1 adjacent to 1 or 4 king-move neighboring 1s.
A296015
Number of n X 4 0..1 arrays with each 1 adjacent to 1 or 4 king-move neighboring 1s.
Terms
- a(0) =4a(1) =28a(2) =91a(3) =366a(4) =1644a(5) =6545a(6) =26865a(7) =112345a(8) =461363a(9) =1902251a(10) =7867396a(11) =32451301a(12) =133919803a(13) =552939041a(14) =2282127828a(15) =9419468870a(16) =38881999590a(17) =160489339983a(18) =662439317422
External references
- oeis: A296015