Number of compositions of n into 6 parts such that no two adjacent parts are equal.

Terms

a(0) =2a(1) =10a(2) =30a(3) =76a(4) =168a(5) =320a(6) =580a(7) =968a(8) =1558a(9) =2380a(10) =3540a(11) =5078a(12) =7160a(13) =9804a(14) =13238a(15) =17510a(16) =22884a(17) =29418a(18) =37462a(19) =47054a(20) =58638a(21) =72272a(22) =88454a(23) =107262a(24) =129312a(25) =154644a(26) =183994a(27) =217442a(28) =255782a(29) =299114