Number of rooted compound windmills with n nodes and leaves of 2 colors where any 2 submills extending from the same node are different.

A032161

Number of rooted compound windmills with n nodes and leaves of 2 colors where any 2 submills extending from the same node are different.

Terms

    a(0) =2a(1) =2a(2) =3a(3) =7a(4) =18a(5) =48a(6) =145a(7) =444a(8) =1393a(9) =4507a(10) =14759a(11) =49142a(12) =165317a(13) =562091a(14) =1925899a(15) =6647608a(16) =23092972a(17) =80660663a(18) =283138682a(19) =998248096a(20) =3533524793a(21) =12552572322a(22) =44737515682a(23) =159919954982a(24) =573214555207

External references