A152353 Number of permutations of floor(i*5/2), i=0..n-1, with all sums of 5 adjacent terms unique.

1, 2, 6, 24, 120, 720, 4608, 33984, 276288, 2537184, 25466944, 279826088, 3299556704, 41853801224, 573876216960, 8325351884896

Offset

1,2

Links

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

Crossrefs

Sequence in context: A147745 A147744 A147743 * A152357 A152365 A147742

Adjacent sequences: A152350 A152351 A152352 * A152354 A152355 A152356

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved