Number of compositions of n into floor((3*j)/2) kinds of j's for all j>=1.

Terms

a(0) =1a(1) =1a(2) =4a(3) =11a(4) =33a(5) =95a(6) =278a(7) =808a(8) =2355a(9) =6856a(10) =19969a(11) =58151a(12) =169353a(13) =493190a(14) =1436288a(15) =4182793a(16) =12181260a(17) =35474611a(18) =103310209a(19) =300862991a(20) =876181998a(21) =2551642760a(22) =7430968523a(23) =21640683328a(24) =63022629465a(25) =183536340391a(26) =534499885849