Formal infinite product representation for the Catalan numbers (A000108) o.g.f. series.
A157161
Formal infinite product representation for the Catalan numbers (A000108) o.g.f. series.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =11a(4) =25a(5) =79a(6) =245a(7) =869a(8) =2692a(9) =9544a(10) =32065a(11) =115381a(12) =400023a(13) =1462730a(14) =5165327a(15) =19165035a(16) =68635477a(17) =255546242a(18) =930138521a(19) =3491772737a(20) =12810761323a(21) =48334512920a(22) =178987624513a(23) =678272753284
External references
- oeis: A157161