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A003614 Symmetries in unrooted (1,4) trees on 3n-1 vertices.
(Formerly M2134)
+0
1
2, 24, 72, 144, 1584, 32544, 30528, 188928, 4030848, 12029184, 66104064, 524719872, 2364433920, 28794737664, 194617138176, 962354727936, 6901447938048, 112061234884608, 366020989931520, 2592919032274944, 19913392024584192 (list; graph; listen)
OFFSET

1,1

REFERENCES

Kathleen A. McKeon, The expected number of symmetries in locally-restricted trees I, pp. 849-860 of Y. Alavi et al., eds., Graph Theory, Combinatorics, and Applications. Wiley, NY, 2 vols., 1991.

LINKS

Index entries for sequences related to trees

CROSSREFS

Sequence in context: A068878 A100918 A139284 this_sequence A119060 A119050 A119068

Adjacent sequences: A003611 A003612 A003613 this_sequence A003615 A003616 A003617

KEYWORD

nonn

AUTHOR

njas, Mira Bernstein (mira(AT)math.berkeley.edu)

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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