A152641 Number of permutations of floor(i*8/5), i=0..n-1, with all sums of 7 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 40320, 343680, 3179232, 32267520, 350146784, 4120616704, 51672076832, 701996388352, 10332170372644

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152636 A152632 A152640 * A152644 A152637 A152645

Adjacent sequences: A152638 A152639 A152640 * A152642 A152643 A152644

Keyword

nonn

Author

R. H. Hardin, Dec 10 2008

Status

approved