Number of length n+5 0..1 arrays with at most two downsteps in every 5 consecutive neighbor pairs.

A256813

Number of length n+5 0..1 arrays with at most two downsteps in every 5 consecutive neighbor pairs.

Terms

    a(0) =63a(1) =124a(2) =245a(3) =484a(4) =956a(5) =1888a(6) =3728a(7) =7362a(8) =14539a(9) =28712a(10) =56701a(11) =111974a(12) =221128a(13) =436688a(14) =862380a(15) =1703044a(16) =3363203a(17) =6641716a(18) =13116185a(19) =25902088a(20) =51151928a(21) =101015784a(22) =199487860a(23) =393952358a(24) =777984487a(25) =1536378320a(26) =3034068649

External references