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A014272 Number of trees on n nodes with forbidden limbs. +0
1
0, 1, 1, 2, 4, 14, 45, 165, 614, 2420, 9782 (list; graph; listen)
OFFSET

0,4

REFERENCES

T. Lu, The enumeration of trees with and without given limbs, Discr. Math., 154 (1996), 153-165.

LINKS

Index entries for sequences related to trees

CROSSREFS

Sequence in context: A047152 A007866 A121751 this_sequence A070822 A101536 A005437

Adjacent sequences: A014269 A014270 A014271 this_sequence A014273 A014274 A014275

KEYWORD

nonn,more

AUTHOR

njas

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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