Number of n X 5 binary arrays with all 1s connected, a path of 1s from left column to right column, and no 1 having more than two 1s adjacent.
A163726
Number of n X 5 binary arrays with all 1s connected, a path of 1s from left column to right column, and no 1 having more than two 1s adjacent.
Terms
- a(0) =1a(1) =26a(2) =236a(3) =1611a(4) =9012a(5) =42833a(6) =184346a(7) =750199a(8) =2938865a(9) =11140954a(10) =41027627a(11) =147536654a(12) =520728357a(13) =1810757776a(14) =6219391908a(15) =21137845763a(16) =71192769782a(17) =237909227705a(18) =789643521050
External references
- oeis: A163726