Number of n X 3 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.
A183520
Number of n X 3 0..2 arrays with each element equal to either the sum mod 3 of its horizontal and vertical neighbors or the sum mod 3 of its diagonal and antidiagonal neighbors.
Terms
- a(0) =5a(1) =31a(2) =101a(3) =543a(4) =2233a(5) =10003a(6) =47685a(7) =215451a(8) =994397a(9) =4603823a(10) =21240401a(11) =98257363a(12) =454235165a(13) =2100740935a(14) =9717553917a(15) =44943606231a(16) =207898873245a(17) =961691911899
External references
- oeis: A183520