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From table of maximal epacts e(p) and corresponding primes p, for x_0=2, x_{m+1} = (x_m)^2-1; sequence gives e(p).
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%I #4 Mar 30 2012 16:45:58

%S 2,4,8,11,12,13,14,18,25,28,30,36,37,38,48,64,65,67,73,87,90,105,136,

%T 151,180,186,210,246,264,292,312,328,331

%N From table of maximal epacts e(p) and corresponding primes p, for x_0=2, x_{m+1} = (x_m)^2-1; sequence gives e(p).

%D R. K. Guy, How to factor a number, Proc. 5th Manitoba Conf. Numerical Math., Congress. Num. 16 (1975), 49-89.

%Y Cf. A014426.

%K nonn,more

%O 1,1

%A _N. J. A. Sloane_.