A243775 Number of Dyck paths of semilength n having exactly six (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=U=(1,1) and 0=D=(1,-1).
64, 0, 1, 1, 0, 58310, 0, 0, 169352, 82494, 40040, 163083704, 140035157, 306726, 178134488, 7368664408, 6899287752, 86343111918, 221762412480, 89389210680, 45967495392, 229706136771072, 18828656, 987116153856, 88775675895264, 303516229481536, 10355664669739531
Offset: 10
Keywords
Examples
a(12) = 1: UUDDUUDDUUDDUUDDUUDDUUDD. a(13) = 1: UUDUUDUUDUUDUUDUUDUDDDDDDD.
Links
- Alois P. Heinz, Table of n, a(n) for n = 10..200