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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; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
CROSSREFS
A row of the array in A087783. Cf. A007846.
Sequence in context: A017420 A017552 A056668 * A245490 A185981 A255321
Adjacent sequences: A087927 A087928 A087929 * A087931 A087932 A087933
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 27 2003
STATUS
approved

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Last modified May 19 22:44 EDT 2024. Contains 372703 sequences. (Running on oeis4.)