A038081 Number of rooted identity trees of height n. Sets of rank n.

1, 1, 2, 12, 65520

Offset

0,3

Comments

Next term is 2^65536 - 65536.

Links

Table of n, a(n) for n=0..4.

Eric Weisstein's World of Mathematics, Rank.

Index entries for sequences related to rooted trees

Crossrefs

Cf. A004111, A038082-A038093, A048828.

Differences of A014221.

Column sums of A227819.

Sequence in context: A274223 A280734 A048830 * A291258 A027737 A063970

Adjacent sequences: A038078 A038079 A038080 * A038082 A038083 A038084

Keyword

nonn,easy

Author

Christian G. Bower, Jan 04 1999

Status

approved