24 Jan
2007
24 Jan
'07
2:07 p.m.
This threw me, too, when I looked at it. Closer examination shows that A000376 is usually equal to A000375, but occasionally smaller. I think this means that A000376 is restricting attention to the cases where the topswop does wind up sorting the cards. I.e., longest time to get 1 to the top for those permutations which wind up sorted when the 1 gets to the top. I agree that a better explanation in A000376 would be useful. Franklin T. Adams-Watters ________________________________________________________________________ Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.