A152349 Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 4 adjacent terms unique.

1, 2, 6, 24, 120, 608, 3684, 23136, 185772, 1557704, 14531768, 142953580, 1530728460, 17401543208, 210735290068, 2698171998814

Offset

1,2

Links

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

Crossrefs

Sequence in context: A267385 A060726 A152332 * A152345 A152342 A147735

Adjacent sequences: A152346 A152347 A152348 * A152350 A152351 A152352

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved