A152355 Number of permutations of floor(i*5/4), i=0..n-1, with all sums of 5 adjacent terms unique.

1, 2, 6, 24, 120, 720, 4560, 32376, 255360, 2288848, 21294224, 220378816, 2478838056, 29988785070, 383377570858, 5201715283316

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152364 A152361 A152356 * A152367 A152351 A147745

Adjacent sequences: A152352 A152353 A152354 * A152356 A152357 A152358

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved