Number of 6-ary rooted trees with n nodes and height exactly 7.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =1a(8) =6a(9) =26a(10) =94a(11) =308a(12) =941a(13) =2738a(14) =7681a(15) =20968a(16) =56018a(17) =147131a(18) =381058a(19) =975598a(20) =2473409a(21) =6218751a(22) =15522486a(23) =38501024a(24) =94961417a(25) =233053346a(26) =569395697a(27) =1385522234a(28) =3359014072a(29) =8116121300