_N. J. A. Sloane (njas(AT)research.att.com)._.
OEIS Server: https://oeis.org/edit/global/110
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N. J. A. Sloane (njas(AT)research.att.com).
CNR. K. Guy, How to factor a number, Proc. 5th 16Manitoba 78Conf. Numerical 75Math., Congress. Num. 16 (1975), 49-89.
From table of maximal epacts e(p) and corresponding primes p, for x_1=2, x_{m+1} = (x_m)^2+1; sequence gives p.
2, 5, 11, 17, 29, 47, 89, 109, 139, 229, 311, 331, 359, 521, 733, 797, 1459, 1669, 1747, 3359, 3467, 4327, 4679, 4793, 5323, 5867, 7229, 7919, 9421, 9649, 10103
1,1
CN 16 78 75.
Cf. A014423.
njas
approved