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A099818
Bisection of A000521.
0
1, 196884, 864299970, 333202640600, 44656994071935, 3176440229784420, 146211911499519294, 4872010111798142520, 126142916465781843075, 2662842413150775245160, 47438786801234168813250, 731811377318137519245696
OFFSET
-1,2
CROSSREFS
Sequence in context: A302407 A305699 A035230 * A345658 A185519 A345659
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 19 2004
EXTENSIONS
More terms from Joshua Zucker, May 15 2006
STATUS
approved