Number of partitions of n such that 2*(greatest part) >= (number of parts).

Terms

a(0) =1a(1) =2a(2) =2a(3) =4a(4) =6a(5) =9a(6) =12a(7) =18a(8) =24a(9) =34a(10) =46a(11) =63a(12) =83a(13) =111a(14) =144a(15) =190a(16) =245a(17) =318a(18) =405a(19) =520a(20) =657a(21) =833a(22) =1045a(23) =1312a(24) =1634a(25) =2036a(26) =2517a(27) =3114a(28) =3829a(29) =4705