A152357 Number of permutations of floor(i*7/2), i=0..n-1, with all sums of 5 adjacent terms unique.

1, 2, 6, 24, 120, 720, 4608, 33984, 276288, 2537184, 25548736, 281073224, 3320705664, 42175645776, 579255683768, 8415210235852

Offset

1,2

Links

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

Crossrefs

Sequence in context: A147744 A147743 A152353 * A152365 A147742 A152352

Adjacent sequences: A152354 A152355 A152356 * A152358 A152359 A152360

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved