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Search: id:A080691
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| A080691 |
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Number of spanning forests of n X n grid graphs. |
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+0
1
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| 1, 15, 3102, 8790016, 341008617408, 181075508242067552, 1315927389374152034113856, 130877523274817580209987036404864, 178135975585132088643635627145305047963624
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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N. Calkin, C. Merino, S. Noble and M. Noy Improved Bounds for the Number of Forests and Acyclic Orientations in the Square Lattice, The Electronic Journal of Combinatorics, Volume 10(1), 2003
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LINKS
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Peter Tittmann, More Result.
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CROSSREFS
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Adjacent sequences: A080688 A080689 A080690 this_sequence A080692 A080693 A080694
Sequence in context: A126681 A126678 A108281 this_sequence A013720 A139297 A070907
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KEYWORD
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hard,nonn
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AUTHOR
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Andre Poenitz [Po"nitz], Peter Tittmann (poenitz(AT)htwm.de), Mar 03 2003
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