Number of compositions of 6*n-2 into parts 5 and 6.

Terms

a(0) =0a(1) =1a(2) =3a(3) =6a(4) =10a(5) =15a(6) =22a(7) =37a(8) =81a(9) =210a(10) =550a(11) =1354a(12) =3096a(13) =6646a(14) =13655a(15) =27490a(16) =55523a(17) =114516a(18) =242652a(19) =525221a(20) =1147796a(21) =2504932a(22) =5423381a(23) =11627959a(24) =24732634a(25) =52379410a(26) =110882143a(27) =235293738a(28) =501101305a(29) =1070653949