Number weak ascent sequences of length 2n (prefixed with a zero) with exactly n weak ascents.
A373115
Number weak ascent sequences of length 2n (prefixed with a zero) with exactly n weak ascents.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =35a(5) =1661a(6) =107002a(7) =9047970a(8) =972937247a(9) =129603346139
External references
- oeis: A373115