A152380 Number of permutations of floor(i*7/6), i=0..n-1, with all sums of 6 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 36864, 295944, 2573856, 24574640, 248081600, 2874772060, 35013887804, 457782584866, 6308816958096

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152387 A152383 A228400 * A152374 A152375 A152370

Adjacent sequences: A152377 A152378 A152379 * A152381 A152382 A152383

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved