Number of integer compositions of n with all distinct 0-prepended first differences.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =5a(5) =10a(6) =14a(7) =28a(8) =40a(9) =67a(10) =106a(11) =184a(12) =293a(13) =481a(14) =733a(15) =1198a(16) =1811a(17) =2817a(18) =4366a(19) =6767a(20) =10402a(21) =15956a(22) =24378a(23) =36624a(24) =55512a(25) =82360a(26) =123719a(27) =183573a(28) =274312a(29) =404868