Number of compositions of n with distinct differences.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =7a(5) =13a(6) =17a(7) =34a(8) =59a(9) =105a(10) =166a(11) =279a(12) =442a(13) =730a(14) =1157a(15) =1927a(16) =3045a(17) =4741a(18) =7527a(19) =11667a(20) =18048a(21) =27928a(22) =43334a(23) =65861a(24) =101385a(25) =153404a(26) =232287a(27) =347643a(28) =523721a(29) =780083