Number of compositions of n where the largest part is less than or equal to the number of parts.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =5a(5) =11a(6) =23a(7) =48a(8) =98a(9) =204a(10) =421a(11) =863a(12) =1766a(13) =3606a(14) =7341a(15) =14913a(16) =30233a(17) =61175a(18) =123589a(19) =249344a(20) =502443a(21) =1011366a(22) =2033894a(23) =4086975a(24) =8206833a(25) =16469875a(26) =33035611a(27) =66234372a(28) =132745859a(29) =265961487