Number of aperiodic multisets of compositions of total weight n.

Terms

a(0) =1a(1) =2a(2) =6a(3) =15a(4) =41a(5) =95a(6) =243a(7) =567a(8) =1366a(9) =3189a(10) =7532a(11) =17428a(12) =40590a(13) =93465a(14) =215331a(15) =493150a(16) =1127978a(17) =2569049a(18) =5841442a(19) =13240351a(20) =29953601a(21) =67596500a(22) =152258270a(23) =342235866a(24) =767895382a(25) =1719813753a(26) =3845442485a(27) =8584197657a(28) =19133459138a(29) =42583565928