A152381 Number of permutations of floor(i*8/3), i=0..n-1, with all sums of 6 adjacent terms unique.

1, 2, 6, 24, 120, 720, 5040, 38016, 315360, 2930976, 30100672, 319572576, 3912977824, 51194602912, 704536354056, 10548585020696

Offset

1,2

Links

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

Crossrefs

Sequence in context: A152382 A152378 A152373 * A152385 A360384 A226439

Adjacent sequences: A152378 A152379 A152380 * A152382 A152383 A152384

Keyword

nonn

Author

R. H. Hardin, Dec 02 2008

Status

approved