A152632 Number of permutations of floor(i*5/3), i=0..n-1, with all sums of 7 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 40320, 342720, 3191904, 32232096, 350962496, 4156960768, 53582346336, 719876114496, 10464406476068

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152643 A152638 A152636 * A152640 A152641 A152644

Adjacent sequences: A152629 A152630 A152631 * A152633 A152634 A152635

Keyword

nonn

Author

R. H. Hardin, Dec 10 2008

Status

approved