Number of compositions [p(1), p(2), ..., p(k)] of n such that p(j) >= p(1) - 1.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =14a(6) =26a(7) =52a(8) =101a(9) =200a(10) =396a(11) =787a(12) =1564a(13) =3117a(14) =6214a(15) =12398a(16) =24749a(17) =49427a(18) =98740a(19) =197303a(20) =394323a(21) =788201a(22) =1575695a(23) =3150265a(24) =6298732a(25) =12594595a(26) =25184598a(27) =50361842a(28) =100711888a(29) =201404839