A152379 Number of permutations of floor(i*7/5), i=0..n-1, with all sums of 6 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 37632, 308112, 2746272, 27224416, 284363360, 3302559216, 41549730788, 545404481048, 7782225729912

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152386 A147736 A147741 * A152377 A152382 A152378

Adjacent sequences: A152376 A152377 A152378 * A152380 A152381 A152382

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved