Number of length n+5 0..3 arrays with at most two downsteps in every 5 consecutive neighbor pairs.
A255657
Number of length n+5 0..3 arrays with at most two downsteps in every 5 consecutive neighbor pairs.
Terms
- a(0) =3340a(1) =11752a(2) =42653a(3) =155144a(4) =564600a(5) =2036844a(6) =7323894a(7) =26452984a(8) =95690028a(9) =345980784a(10) =1250385422a(11) =4516046380a(12) =16313317592a(13) =58952879320a(14) =213036643465a(15) =769783313248
External references
- oeis: A255657