A152318 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A152318

Number of permutations of floor(i*5/3), i=0..n-1, with all sums of 3 adjacent terms unique.

%I #5 Apr 07 2021 20:02:05

%S 1,2,6,24,112,604,3508,25080,196206,1690214,15963392,166056160,

%T 1845536138,21871425298,276414171186,3766223924416

%N Number of permutations of floor(i*5/3), i=0..n-1, with all sums of 3 adjacent terms unique.

%K nonn

%O 1,2

%A _R. H. Hardin_, Dec 02 2008