A171339 Number of permutations of 1..n v[1..n] with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1

1, 2, 6, 22, 118, 656, 4586, 36656, 332050, 3326146, 36615032, 439501232, 5741754786, 80586187678

Offset

1,2

Links

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

Crossrefs

Sequence in context: A370525 A352413 A101042 * A374619 A032266 A095856

Adjacent sequences: A171336 A171337 A171338 * A171340 A171341 A171342

Keyword

nonn

Author

R. H. Hardin Dec 06 2009

Status

approved