A152711 Number of permutations of floor(i*9/7), i=0..n-1, with all sums of 8 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3421440, 34443360, 373758336, 4351612704, 54025686272, 727969951712, 10267280807872

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152704 A152699 A152698 * A152694 A152696 A152700

Adjacent sequences: A152708 A152709 A152710 * A152712 A152713 A152714

Keyword

nonn

Author

R. H. Hardin, Dec 11 2008

Status

approved