Inverse Moebius transform of A000056.

Terms

a(0) =1a(1) =7a(2) =25a(3) =55a(4) =121a(5) =175a(6) =337a(7) =439a(8) =673a(9) =847a(10) =1321a(11) =1375a(12) =2185a(13) =2359a(14) =3025a(15) =3511a(16) =4897a(17) =4711a(18) =6841a(19) =6655a(20) =8425a(21) =9247a(22) =12145a(23) =10975a(24) =15121a(25) =15295a(26) =18169a(27) =18535a(28) =24361a(29) =21175