A061154 Numbers k such that k*2^m-1 are composites for all exponents m in the range 0<=m<=k.

148, 191, 296, 592, 659, 1103, 1184, 1211, 1318, 1348, 2206, 2293, 2368, 2422, 2636, 2696, 3817, 4207, 4586, 4844, 5272, 5392, 7634, 9172, 9221, 9688, 10391, 10451, 10544, 10784, 11519, 14347, 14459, 15268, 16829, 18344, 18442, 19376, 20782, 21088, 23038, 23669

Offset: 1

Author

Patrick De Geest, Apr 15 2001

Keywords

• nonn

Crossrefs

Cf. A061153, A061155, A061156, A061157, A061158.

Extensions

Offset corrected and a(19)-a(26) from Sean A. Irvine, Jan 24 2023

a(27)-a(42) from Michael S. Branicky, Jan 26 2023