Number of compositions of n into parts with multiplicity not larger than 4.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =15a(6) =31a(7) =57a(8) =114a(9) =213a(10) =410a(11) =766a(12) =1437a(13) =2659a(14) =4888a(15) =9130a(16) =16406a(17) =29477a(18) =54084a(19) =96353a(20) =170015a(21) =303356a(22) =536877a(23) =932679a(24) =1637383a(25) =2831910a(26) =4919306a(27) =8395627a(28) =14550779a(29) =24673403