Number of series-reduced planted achiral trees with n leaves spanning an initial interval of positive integers.
A317100
Number of series-reduced planted achiral trees with n leaves spanning an initial interval of positive integers.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =12a(4) =17a(5) =41a(6) =65a(7) =144a(8) =262a(9) =533a(10) =1025a(11) =2110a(12) =4097a(13) =8261a(14) =16407a(15) =32928a(16) =65537a(17) =131384a(18) =262145a(19) =524854a(20) =1048647a(21) =2098181a(22) =4194305a(23) =8390924a(24) =16777234a(25) =33558533a(26) =67109132a(27) =134226070a(28) =268435457a(29) =536887919
External references
- oeis: A317100