A147744 Number of permutations of 2..n+1 with all sums of 2 through 5 adjacent terms squared respectively unique.

1, 2, 6, 24, 120, 720, 4608, 33952, 305092, 2822386, 30933326, 360660964, 4441970306, 60411890162

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152367 A152351 A147745 * A147743 A152353 A152357

Adjacent sequences: A147741 A147742 A147743 * A147745 A147746 A147747

Keyword

nonn

Author

R. H. Hardin, Nov 11 2008

Status

approved