Number of inequivalent colorings of series-reduced balanced rooted trees with n leaves.
A320173
Number of inequivalent colorings of series-reduced balanced rooted trees with n leaves.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =12a(4) =23a(5) =84a(6) =204a(7) =830a(8) =2940a(9) =13397a(10) =58794a(11) =283132a(12) =1377302a(13) =7087164a(14) =37654377a(15) =209943842a(16) =1226495407a(17) =7579549767a(18) =49541194089a(19) =341964495985
External references
- oeis: A320173