Number of partitions of n into terms of (1,3)-Ulam sequence, cf. A002859.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =6a(7) =7a(8) =10a(9) =13a(10) =17a(11) =21a(12) =28a(13) =34a(14) =42a(15) =52a(16) =65a(17) =78a(18) =96a(19) =113a(20) =138a(21) =165a(22) =196a(23) =231a(24) =276a(25) =322a(26) =379a(27) =442a(28) =518a(29) =600