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A013990 Edge-disjoint paths between opposite corners of n X n grid. +0
1
1, 1, 2, 16, 800, 323632, 1086297184, 30766606427588, 7466577706821521924, 15681997226277809235573754 (list; graph; listen)
OFFSET

0,3
REFERENCES

rec.puzzles Dec 10 1995

CROSSREFS

Sequence in context: A012920 A013088 A013137 this_sequence A013005 A013000 A013178

Adjacent sequences: A013987 A013988 A013989 this_sequence A013991 A013992 A013993

KEYWORD

nonn,hard

AUTHOR

Dan Hoey (Hoey(AT)AIC.NRL.Navy.Mil)

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

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