A147739 Number of permutations of 1..n with all sums of 2 through 5 adjacent terms squared respectively unique.

1, 2, 6, 24, 120, 720, 4824, 33912, 291784, 2859364, 29329354, 342019406, 4210898288, 56537197402

Offset

1,2

Links

Table of n, a(n) for n=1..14.

Crossrefs

Sequence in context: A189271 A152366 A147740 * A147738 A147737 A177539

Adjacent sequences: A147736 A147737 A147738 * A147740 A147741 A147742

Keyword

nonn

Author

R. H. Hardin, Nov 11 2008

Status

approved