Number of integer compositions of n that are the first sums of some composition with all parts > 1.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =1a(6) =1a(7) =2a(8) =3a(9) =4a(10) =5a(11) =7a(12) =9a(13) =13a(14) =16a(15) =23a(16) =28a(17) =40a(18) =49a(19) =69a(20) =85a(21) =118a(22) =146a(23) =201a(24) =249a(25) =341a(26) =422a(27) =576a(28) =712a(29) =969