Number of multisets summing to n that do not contain 1 and are not the first sums of any multiset.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =0a(7) =1a(8) =1a(9) =4a(10) =3a(11) =6a(12) =7a(13) =14a(14) =15a(15) =23a(16) =28a(17) =43a(18) =51a(19) =72a(20) =88a(21) =120a(22) =146a(23) =193a(24) =236a(25) =307a(26) =373a(27) =476a(28) =578a(29) =727