OFFSET
1,2
COMMENTS
This sequence counts combinations that are possible to create by moving around the numbers in A051731. It would be interesting to know what values the determinant can take for such combinations.
MAPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Mats Granvik, Dec 03 2008
EXTENSIONS
Terms beyond a(5) from R. J. Mathar, Jan 22 2009
STATUS
approved