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A038058 Number of labeled trees with 2-colored nodes. 1
1, 2, 4, 24, 256, 4000, 82944, 2151296, 67108864, 2448880128, 102400000000, 4829076871168, 253613523861504, 14681377947951104, 928873060356849664, 63772920000000000000, 4722366482869645213696, 375183514207494575620096 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Index entries for sequences related to trees

FORMULA

A038057/n. E.g.f. B(2x) where B(x) is e.g.f. of A000272.

CROSSREFS

Cf. A000272, A038055-A038062.

Sequence in context: A190655 A038049 A151817 * A062531 A141599 A047677

Adjacent sequences:  A038055 A038056 A038057 * A038059 A038060 A038061

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Jan 04 1999.

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.