Number of compositions of n with exactly 9 transitions between different parts.

Terms

a(0) =2a(1) =28a(2) =210a(3) =1158a(4) =5112a(5) =19206a(6) =63494a(7) =189092a(8) =516528a(9) =1310128a(10) =3119942a(11) =7027866a(12) =15082152a(13) =30994832a(14) =61292380a(15) =117063670a(16) =216690678a(17) =389814504a(18) =683256278a(19) =1169346934a(20) =1957831816a(21) =3212249500a(22) =5172450680a(23) =8185057350a(24) =12743907242a(25) =19544000940a(26) =29551096298