A147744 - OEIS

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A147744

Number of permutations of 2..n+1 with all sums of 2 through 5 adjacent terms squared respectively unique.

%I #5 Apr 07 2021 19:36:55

%S 1,2,6,24,120,720,4608,33952,305092,2822386,30933326,360660964,

%T 4441970306,60411890162

%N Number of permutations of 2..n+1 with all sums of 2 through 5 adjacent terms squared respectively unique.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 11 2008