Number of compositions of n with weakly increasing differences.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =11a(6) =19a(7) =28a(8) =41a(9) =62a(10) =87a(11) =120a(12) =170a(13) =228a(14) =303a(15) =408a(16) =534a(17) =689a(18) =899a(19) =1145a(20) =1449a(21) =1842a(22) =2306a(23) =2863a(24) =3571a(25) =4398a(26) =5386a(27) =6610a(28) =8039a(29) =9716