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A038081 Number of rooted identity trees of height n. Sets of rank n. 17
1, 1, 2, 12, 65520 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 17 14:57 EST 2020. Contains 330958 sequences. (Running on oeis4.)