Number of partitions of 3n+1.

Terms

a(0) =1a(1) =5a(2) =15a(3) =42a(4) =101a(5) =231a(6) =490a(7) =1002a(8) =1958a(9) =3718a(10) =6842a(11) =12310a(12) =21637a(13) =37338a(14) =63261a(15) =105558a(16) =173525a(17) =281589a(18) =451276a(19) =715220a(20) =1121505a(21) =1741630a(22) =2679689a(23) =4087968a(24) =6185689a(25) =9289091a(26) =13848650a(27) =20506255a(28) =30167357a(29) =44108109