Number of length n+6 0..2 arrays with at most two downsteps in every 6 consecutive neighbor pairs.
A255620
Number of length n+6 0..2 arrays with at most two downsteps in every 6 consecutive neighbor pairs.
Terms
- a(0) =1647a(1) =4248a(2) =11386a(3) =30816a(4) =83325a(5) =225253a(6) =602886a(7) =1605726a(8) =4293918a(9) =11529741a(10) =30959919a(11) =83094838a(12) =222919389a(13) =597525981a(14) =1601258653a(15) =4293585291a(16) =11516774865a(17) =30888797609a(18) =82837467594a(19) =222143245920a(20) =595677211881
External references
- oeis: A255620