Number of homeomorphically irreducible leaf colored trees with n leaves using exactly 2 colors.

A339785

Number of homeomorphically irreducible leaf colored trees with n leaves using exactly 2 colors.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =7a(4) =24a(5) =91a(6) =354a(7) =1491a(8) =6504a(9) =29711a(10) =139616a(11) =674696a(12) =3328798a(13) =16730955a(14) =85382210a(15) =441571216a(16) =2310003732a(17) =12206975528a(18) =65082858008a(19) =349756996762

External references