Number of compositions of n such that the odd parts are weakly increasing.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =14a(6) =25a(7) =48a(8) =86a(9) =162a(10) =292a(11) =541a(12) =978a(13) =1794a(14) =3247a(15) =5919a(16) =10712a(17) =19451a(18) =35184a(19) =63729a(20) =115199a(21) =208327a(22) =376333a(23) =679842a(24) =1227403a(25) =2215695a(26) =3998408a(27) =7214274a(28) =13014001a(29) =23472678