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Upper members of a "good pair" of the form (k, 2*k +- 1).
1

%I #12 Apr 29 2021 20:10:56

%S 1,13,23,61,83,97,217,253,277,287,301,347,359,407,433,793,983,1021,

%T 1043,1079,1093,1177,1199,1367,1499,1607,1859,1979,4081,4093,4213,

%U 4307,4381,4439,5063,5387,5447,5521,5999,7321,7441,7477,12397,13847,15899

%N Upper members of a "good pair" of the form (k, 2*k +- 1).

%H N. G. de Bruijn, <a href="http://dx.doi.org/10.1090/S0025-5718-1964-0167447-9">Some direct decompositions of the set of integers</a>, Math. Comp., 18 (1964), 537-546.

%Y Cf. A046861, A000696.

%K nonn,easy,nice

%O 1,2

%A _N. J. A. Sloane_

%E Reference gives 45 terms.

%E More terms from Pab Ter (pabrlos2(AT)yahoo.com), Nov 06 2005

%E Offset corrected and title improved by _Sean A. Irvine_, Apr 29 2021