Number of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) 7.

Terms

a(0) =1a(1) =8a(2) =26a(3) =86a(4) =247a(5) =669a(6) =1709a(7) =4251a(8) =10214a(9) =24066a(10) =55551a(11) =126369a(12) =283505a(13) =629261a(14) =1382778a(15) =3013846a(16) =6519955a(17) =14015077a(18) =29952488a(19) =63690016a(20) =134807361a(21) =284170813a(22) =596800591a(23) =1249172169a(24) =2606663357a(25) =5424220543a(26) =11258470062a(27) =23313312932a(28) =48171597034a(29) =99337649116