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A087930 Number of ways of arranging the numbers 1 ... 9n into a 9 X n array so there is exactly one local maximum. 0
256, 72545402880, 1811764909105311267840, 299167849199075018703047460201600 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

A row of the array in A087783. Cf. A007846.

Sequence in context: A017420 A017552 A056668 * A185981 A139304 A018859

Adjacent sequences:  A087927 A087928 A087929 * A087931 A087932 A087933

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Oct 27 2003

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Last modified February 16 16:00 EST 2012. Contains 205938 sequences.