3rd-order Patalan numbers (generalization of Catalan numbers).
A025748
3rd-order Patalan numbers (generalization of Catalan numbers).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =90a(5) =594a(6) =4158a(7) =30294a(8) =227205a(9) =1741905a(10) =13586859a(11) =107459703a(12) =859677624a(13) =6943550040a(14) =56540336040a(15) =463630755528
External references
- oeis: A025748