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A147951 Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique. 0

%I

%S 1,2,6,16,74,304,1424,7946,39908,223514,1294348,8736910,58707788,

%T 401926462,3287231046,25868828516

%N Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 2 through 5 adjacent terms respectively unique.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 17 2008

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Last modified May 17 16:09 EDT 2022. Contains 353747 sequences. (Running on oeis4.)