A152370 Number of permutations of floor(i*3/2), i=0..n-1, with all sums of 6 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 37248, 308232, 2758368, 27371504, 287213888, 3389517032, 42169597664, 567983544206, 8069030481896

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152380 A152374 A152375 * A152372 A152376 A152384

Adjacent sequences: A152367 A152368 A152369 * A152371 A152372 A152373

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved