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A037246 Total number of fixed points in free homeomorphically irreducible trees with n nodes. +0
1
1, 0, 0, 1, 1, 1, 3, 5, 10, 16 (list; graph; listen)
OFFSET

1,7

REFERENCES

F. Harary and E. M. Palmer, Probability that a point of a tree is fixed, Math. Proc. Camb. Phil. Soc. 85 (1979) 407-415.

LINKS

Index entries for sequences related to trees

FORMULA

Reference gives a recurrence.

CROSSREFS

Cf. A005200-A005202.

Sequence in context: A072523 A054473 A006168 this_sequence A032279 A070558 A070559

Adjacent sequences: A037243 A037244 A037245 this_sequence A037247 A037248 A037249

KEYWORD

nonn,easy,more

AUTHOR

njas

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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