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Bisection of A262310.
2

%I #6 Oct 04 2015 20:31:28

%S 1,1,9,49,57,2401,-9063,-153502,-755943,-767039,-40127031,-58813391,

%T -1696965207,-4483997699,105920054242,-203398909151,555306094297,

%U -2817291378419,5514657953337,442400619060589,-739096098204743,-69507309377825326,-90124818751960951

%N Bisection of A262310.

%Y Cf. A262310, A262538.

%K sign

%O 0,3

%A _N. J. A. Sloane_, Oct 04 2015