A152318 Number of permutations of floor(i*5/3), i=0..n-1, with all sums of 3 adjacent terms unique.

1, 2, 6, 24, 112, 604, 3508, 25080, 196206, 1690214, 15963392, 166056160, 1845536138, 21871425298, 276414171186, 3766223924416

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Crossrefs

Sequence in context: A212884 A375923 A085486 * A152328 A152325 A152329

Adjacent sequences: A152315 A152316 A152317 * A152319 A152320 A152321

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved