Number of Dyck paths of semilength n having exactly nine (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).
A243778
Number of Dyck paths of semilength n having exactly nine (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).
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =740a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =4655685a(12) =19546a(13) =0a(14) =0a(15) =1747955a(16) =0a(17) =20759960a(18) =167960a(19) =110a(20) =0a(22) =0a(23) =0a(24) =261107026a(25) =11058883809a(29) =533693067696a(30) =45880541850
External references
- oeis: A243778