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%I #10 May 15 2023 15:41:29
%S 4,6,28,76,256,374,948,1024,2264,2166,4396,3912
%N Number of arrays of length 3 that are sums of n consecutive elements of length 3+n-1 permutations of 0..3+n-2, and no two consecutive rises or falls in the latter permutation.
%C Row 3 of A229717.
%e Some solutions for n=4:
%e 10 12 10 8 9 8 10 8 8 8 9 10 10 10 13 7
%e 8 9 11 11 11 7 7 12 11 10 11 11 13 12 10 10
%e 9 7 9 14 10 10 8 14 13 11 12 10 12 11 8 12
%Y Cf. A229717.
%K nonn,more
%O 1,1
%A _R. H. Hardin_, Sep 27 2013