A152376 Number of permutations of floor(i*7/2), i=0..n-1, with all sums of 6 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 37248, 311256, 2830368, 28714256, 307721984, 3759664356, 48514165952, 674493371948, 9941515057552

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152375 A152370 A152372 * A152384 A152371 A152386

Adjacent sequences: A152373 A152374 A152375 * A152377 A152378 A152379

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved