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A013997 Number of edge-disjoint paths between opposite corners of 8xn grid. 0
1, 1, 256, 157534, 233941432, 479251547011, 1088622220193884, 2592366455926147562, 6332745788043635410871, 15681997226277809235573754, 39167604588475049043393511660 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

REFERENCES

rec.puzzles Dec 10 1995.

CROSSREFS

Sequence in context: A144322 A205927 A185924 * A118056 A185563 A013833

Adjacent sequences:  A013994 A013995 A013996 * A013998 A013999 A014000

KEYWORD

nonn,hard

AUTHOR

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

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.