Numerators in expansion of 1/sqrt(1-x).

Terms

a(0) =1a(1) =1a(2) =3a(3) =5a(4) =35a(5) =63a(6) =231a(7) =429a(8) =6435a(9) =12155a(10) =46189a(11) =88179a(12) =676039a(13) =1300075a(14) =5014575a(15) =9694845a(16) =300540195a(17) =583401555a(18) =2268783825a(19) =4418157975a(20) =34461632205a(21) =67282234305a(22) =263012370465a(23) =514589420475