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A229562
Number of arrays of length n that are sums of 4 consecutive elements of length n+3 permutations of 0..n+2.
0
1, 20, 264, 2904, 9968, 257136, 3160800, 37000368
OFFSET
1,2
COMMENTS
Column 4 of A229565.
EXAMPLE
Some solutions for n=3:
10 12 7 9 11 10 6 9 8 8 11 10 10 12 7 9
14 9 12 10 7 14 7 12 12 11 14 8 9 9 8 8
13 10 13 11 10 11 11 10 11 10 13 6 7 11 11 7
CROSSREFS
Cf. A229565.
Sequence in context: A025961 A208948 A278408 * A021854 A025939 A278773
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 26 2013
STATUS
approved