A061155 Numbers k such that k*2^m+1 is prime for exactly one exponent m in the range 0<=m<=k.

31, 91, 353, 493, 512, 587, 692, 752, 829, 919, 1021, 1024, 1174, 1384, 1643, 1658, 1669, 1735, 1838, 1913, 1921, 2042, 2048, 2057, 2311, 2423, 2768, 3167, 3286, 3316, 3443, 3826, 3829, 3842, 3983, 4037, 4084, 4096, 4114, 4429, 4801, 4846, 4861, 5536, 6319, 6334, 6529

Offset

1,1

Comments

Corresponding exponent values see A061156.

Links

Michael S. Branicky, Table of n, a(n) for n = 1..102

Crossrefs

Cf. A061153, A061154, A061156, A061157, A061158.

Sequence in context: A139700 A124803 A126385 * A098440 A042892 A042890

Adjacent sequences: A061152 A061153 A061154 * A061156 A061157 A061158

Keyword

nonn

Author

Patrick De Geest, Apr 15 2001

Extensions

Offset corrected and a(29)-a(43) from Sean A. Irvine, Jan 24 2023

a(44) and beyond from Michael S. Branicky, Jan 25 2023

Status

approved