Sum of the semi-abscissae of the first returns to the axis over all skew Dyck paths of semilength n.
A129160
Sum of the semi-abscissae of the first returns to the axis over all skew Dyck paths of semilength n.
Terms
- a(0) =1a(1) =4a(2) =18a(3) =82a(4) =378a(5) =1760a(6) =8262a(7) =39044a(8) =185526a(9) =885596a(10) =4243590a(11) =20400954a(12) =98353278a(13) =475322352a(14) =2302064010a(15) =11170370850a(16) =54293503770a(17) =264290420540
External references
- oeis: A129160