Number of compositions (ordered partitions) of n into parts with an odd number of prime divisors (counted with multiplicity).

A286226

Number of compositions (ordered partitions) of n into parts with an odd number of prime divisors (counted with multiplicity).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =3a(6) =2a(7) =6a(8) =7a(9) =10a(10) =18a(11) =22a(12) =39a(13) =54a(14) =81a(15) =127a(16) =179a(17) =282a(18) =412a(19) =620a(20) =940a(21) =1384a(22) =2106a(23) =3129a(24) =4698a(25) =7062a(26) =10531a(27) =15856a(28) =23695a(29) =35541

External references