A046862 Upper members of a "good pair" of the form (k, 2*k +- 1).

1, 13, 23, 61, 83, 97, 217, 253, 277, 287, 301, 347, 359, 407, 433, 793, 983, 1021, 1043, 1079, 1093, 1177, 1199, 1367, 1499, 1607, 1859, 1979, 4081, 4093, 4213, 4307, 4381, 4439, 5063, 5387, 5447, 5521, 5999, 7321, 7441, 7477, 12397, 13847, 15899

Offset

1,2

Links

Table of n, a(n) for n=1..45.

N. G. de Bruijn, Some direct decompositions of the set of integers, Math. Comp., 18 (1964), 537-546.

Crossrefs

Cf. A046861, A000696.

Sequence in context: A139863 A304672 A316119 * A155093 A147443 A131447

Adjacent sequences: A046859 A046860 A046861 * A046863 A046864 A046865

Keyword

nonn,easy,nice

Author

N. J. A. Sloane

Extensions

Reference gives 45 terms.

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

Offset corrected and title improved by Sean A. Irvine, Apr 29 2021

Status

approved