Number of Dyck paths of semilength n such that all sixteen consecutive step patterns of length 4 occur at least once.
A243820
Number of Dyck paths of semilength n such that all sixteen consecutive step patterns of length 4 occur at least once.
Terms
- a(0) =38a(1) =587a(2) =4785a(3) =31398a(4) =190050a(5) =1043248a(6) =5324534a(7) =25711105a(8) =119092876a(9) =533680433a(10) =2329450085a(11) =9955122396a(12) =41824314441a(13) =173289259905a(14) =709861015186
External references
- oeis: A243820