Numerators in expansion of (1 - x)^(-3/2).

Terms

a(0) =1a(1) =3a(2) =15a(3) =35a(4) =315a(5) =693a(6) =3003a(7) =6435a(8) =109395a(9) =230945a(10) =969969a(11) =2028117a(12) =16900975a(13) =35102025a(14) =145422675a(15) =300540195a(16) =9917826435a(17) =20419054425a(18) =83945001525a(19) =172308161025