A147735 Number of permutations of 0..n-1 with all sums of 2 through 6 adjacent terms squared respectively unique.

1, 2, 6, 24, 120, 624, 4176, 31564, 271972, 2654974, 28246094, 317407978, 4017408038, 52647146188

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152349 A152345 A152342 * A147734 A147733 A147732

Adjacent sequences: A147732 A147733 A147734 * A147736 A147737 A147738

Keyword

nonn

Author

R. H. Hardin, Nov 11 2008

Status

approved