A152328 Number of permutations of floor(i*9/4), i=0..n-1, with all sums of 3 adjacent terms unique.

1, 2, 6, 24, 112, 604, 3688, 27200, 231030, 1936958, 17801198, 187809048, 2272871788, 26912083350, 336583458898, 4721793229416

Offset

1,2

Links

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

Crossrefs

Sequence in context: A375923 A085486 A152318 * A152325 A152329 A216716

Adjacent sequences: A152325 A152326 A152327 * A152329 A152330 A152331

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved