Partial sums of cardinalities of coalition sets A095941.

Terms

a(0) =0a(1) =0a(2) =1a(3) =5a(4) =18a(5) =53a(6) =138a(7) =332a(8) =757a(9) =1661a(10) =3546a(11) =7424a(12) =15328a(13) =31336a(14) =63618a(15) =128531a(16) =258811a(17) =519956a(18) =1042992a(19) =2090009a(20) =4185231a(21) =8377158a(22) =16762853a(23) =33536516a(24) =67086633a(25) =134190278a(26) =268401718a(27) =536829625a(28) =1073691505a(29) =2147422558