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%I #3 Mar 31 2012 12:35:45
%S 0,70,8820,320292,7850304,156301992,2749114368,44604811680,
%T 685421399520
%N Number of permutations of 1..n with the sequence of sums of 2 adjacent elements having exactly 4 maxima
%K nonn
%O 7,2
%A _R. H. Hardin_ Jul 25 2010