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A262540
Bisection of A262539.
2
1, 9, -99, -7038, -113643, 1547469, 112734378, 1884830229, -26299018683, -1956243650733, -33464928293199, 452674080810576, 34841458485708282, 611295716269145124, -7738654169519261871, -626134798894169029653, -11321201939484706804827, 129953731916611548222291
OFFSET
0,2
CROSSREFS
Sequence in context: A068668 A035027 A196487 * A265203 A078238 A080494
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Oct 04 2015
STATUS
approved