A152642 Number of permutations of floor(i*8/7), i=0..n-1, with all sums of 7 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 40320, 335040, 3012192, 29176128, 305154560, 3438326176, 41047176736, 547189186848, 7724678032040

Offset

1,2

Links

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

Crossrefs

Sequence in context: A267388 A152628 A152647 * A152639 A152634 A152633

Adjacent sequences: A152639 A152640 A152641 * A152643 A152644 A152645

Keyword

nonn

Author

R. H. Hardin, Dec 10 2008

Status

approved