Expansion of 1/2 * (((1 + 2*x)/(1 - 2*x))^(3/2) - 1).

Terms

a(0) =0a(1) =3a(2) =9a(3) =22a(4) =51a(5) =114a(6) =250a(7) =540a(8) =1155a(9) =2450a(10) =5166a(11) =10836a(12) =22638a(13) =47124a(14) =97812a(15) =202488a(16) =418275a(17) =862290a(18) =1774630a(19) =3646500a(20) =7482618a(21) =15334748a(22) =31391724a(23) =64194312a(24) =131151566a(25) =267711444a(26) =546031500a(27) =1112864200a(28) =2266587900a(29) =4613409000