A152323 Number of permutations of floor(i*7/5), i=0..n-1, with all sums of 3 adjacent terms unique.

1, 2, 6, 24, 104, 592, 3384, 22544, 172448, 1468904, 13506934, 134335588, 1414062686, 16456846630, 203601501758, 2712671491944

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152315 A152317 A152321 * A337770 A171338 A327006

Adjacent sequences: A152320 A152321 A152322 * A152324 A152325 A152326

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved