Number of isoscent sequences of length n with exactly three ascents.
A243229
Number of isoscent sequences of length n with exactly three ascents.
Terms
- a(0) =17a(1) =229a(2) =1819a(3) =11172a(4) =58847a(5) =280158a(6) =1242859a(7) =5238042a(8) =21245548a(9) =83685745a(10) =322225735a(11) =1218705577a(12) =4544214608a(13) =16751906196a(14) =61188410692a(15) =221832968059a(16) =799344529621
External references
- oeis: A243229