%I
%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)^21; sequence gives e(p).
%D R. K. Guy, How to factor a number, Proc. 5th Manitoba Conf. Numerical Math., Congress. Num. 16 (1975), 4989.
%Y Cf. A014426.
%K nonn,more
%O 1,1
%A _N. J. A. Sloane_.
