Number of compositions (ordered partitions) of n into tribonacci numbers 1,2,4,7,13,24, ... (A000073).

A357451

Number of compositions (ordered partitions) of n into tribonacci numbers 1,2,4,7,13,24, ... (A000073).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =10a(6) =18a(7) =32a(8) =57a(9) =101a(10) =179a(11) =318a(12) =564a(13) =1002a(14) =1778a(15) =3157a(16) =5603a(17) =9947a(18) =17656a(19) =31342a(20) =55635a(21) =98759a(22) =175308a(23) =311191a(24) =552400a(25) =980571a(26) =1740625a(27) =3089803a(28) =5484750a(29) =9736045

External references