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

Terms

a(0) =42a(1) =68a(2) =114a(3) =196a(4) =337a(5) =568a(6) =945a(7) =1574a(8) =2645a(9) =4476a(10) =7568a(11) =12736a(12) =21365a(13) =35852a(14) =60308a(15) =101608a(16) =171148a(17) =287940a(18) =484045a(19) =813826a(20) =1369115a(21) =2304172a(22) =3877545a(23) =6523278a(24) =10972180a(25) =18456064a(26) =31049291a(27) =52240182a(28) =87891550a(29) =147861804