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A068750 Number of potential flows in n X n array with integer velocities in -3..3, i.e. number of n X n arrays with adjacent elements differing by no more than 3, counting arrays differing by a constant only once. +0
1
1, 231, 1253329, 164185416899, 523957519578572209, 40918963843906494595507077 (list; graph; listen)
OFFSET

1,2

CROSSREFS

By size 3 X 3, ..., 6 X 6 A068744-A068747, by velocity limit 1..14 A068248-A068761, solenoidal flows A068722-A068738.

Adjacent sequences: A068747 A068748 A068749 this_sequence A068751 A068752 A068753

Sequence in context: A066370 A139412 A027551 this_sequence A050423 A126818 A064715

KEYWORD

nonn

AUTHOR

Ron Hardin (rhh(AT)cadence.com), Feb 27 2002

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Last modified October 5 16:50 EDT 2008. Contains 144613 sequences.


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