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Search: id:A124346
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A124346 Number of rooted identity trees on n nodes with thinning limbs. +0
1
1, 1, 1, 2, 2, 4, 6, 11, 17, 32, 56, 102, 184, 340, 624, 1161, 2156, 4036, 7562, 14234, 26828, 50747, 96125, 182545, 347187, 661618, 1262583, 2413275, 4618571, 8850905, 16981142, 32616900, 62713951, 120703497, 232527392, 448344798 (list; graph; listen)
OFFSET

1,4

COMMENT

A rooted tree with thinning limbs is such that if a node has k children, all its children have at most k children.

CROSSREFS

Cf. A004111, A124343-A124348.

Sequence in context: A032307 A007560 A032237 this_sequence A033961 A000672 A115868

Adjacent sequences: A124343 A124344 A124345 this_sequence A124347 A124348 A124349

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Oct 30 2006, suggested by Frank Adams-Watters (FrankTAW(AT)Netscape.net

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.


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