Number of compositions of 5*n-4 into parts 3 and 5.

Terms

a(0) =0a(1) =1a(2) =3a(3) =6a(4) =11a(5) =23a(6) =57a(7) =149a(8) =379a(9) =928a(10) =2227a(11) =5336a(12) =12872a(13) =31236a(14) =75949a(15) =184524a(16) =447702a(17) =1085401a(18) =2631240a(19) =6380241a(20) =15474230a(21) =37533077a(22) =91034937a(23) =220790480a(24) =535475968a(25) =1298668192a(26) =3149634952a(27) =7638811025a(28) =18526466357a(29) =44932341015