Number of compositions of 5*n-1 into parts 3 and 5.

Terms

a(0) =0a(1) =1a(2) =4a(3) =10a(4) =21a(5) =44a(6) =101a(7) =250a(8) =629a(9) =1557a(10) =3784a(11) =9120a(12) =21992a(13) =53228a(14) =129177a(15) =313701a(16) =761403a(17) =1846804a(18) =4478044a(19) =10858285a(20) =26332515a(21) =63865592a(22) =154900529a(23) =375691009a(24) =911166977a(25) =2209835169a(26) =5359470121a(27) =12998281146a(28) =31524747503a(29) =76457088518