Number of integer partitions of n where 2*(number of distinct parts) >= (number of parts).

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =6a(6) =8a(7) =11a(8) =15a(9) =20a(10) =30a(11) =38a(12) =49a(13) =65a(14) =83a(15) =108a(16) =139a(17) =178a(18) =224a(19) =286a(20) =358a(21) =437a(22) =550a(23) =684a(24) =837a(25) =1037a(26) =1269a(27) =1553a(28) =1889a(29) =2295