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A229720 Number of arrays of length 4 that are sums of n consecutive elements of length 4+n-1 permutations of 0..4+n-2, and no two consecutive rises or falls in the latter permutation. 0

%I #8 Apr 28 2021 01:24:52

%S 10,32,82,436,1906,4564,13232,18336,43654,50284

%N Number of arrays of length 4 that are sums of n consecutive elements of length 4+n-1 permutations of 0..4+n-2, and no two consecutive rises or falls in the latter permutation.

%C Row 4 of A229717.

%e Some solutions for n=4:

%e 9 11 12 7 15 12 9 13 6 14 15 17 12 11 11 8

%e 13 12 10 11 12 15 10 14 9 11 12 12 11 14 15 9

%e 16 10 8 14 11 17 11 15 13 9 9 9 12 13 17 11

%e 14 11 10 15 12 15 14 11 16 7 11 8 15 12 16 14

%K nonn,more

%O 1,1

%A _R. H. Hardin_, Sep 27 2013

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Last modified April 25 14:08 EDT 2024. Contains 371989 sequences. (Running on oeis4.)