Exponential Riordan array [1/sqrt(1-2x), x/(1-2x)].

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =6a(5) =1a(6) =15a(7) =45a(8) =15a(9) =1a(10) =105a(11) =420a(12) =210a(13) =28a(14) =1a(15) =945a(16) =4725a(17) =3150a(18) =630a(19) =45a(20) =1a(21) =10395a(22) =62370a(23) =51975a(24) =13860a(25) =1485a(26) =66a(27) =1a(28) =135135a(29) =945945