A258154 Least k such that k*2^m - 1 has a covering set of modulus 2*n, or 0 if no such value exists.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 509203, 0, 0, 0, 0, 0, 777149, 0, 0, 0, 0, 0, 10157893, 0, 0, 0, 0, 0, 60014203, 0, 200883553191612793, 0, 0, 0, 7106977, 0, 0, 0

Offset

1,12

Links

Table of n, a(n) for n=1..39.

Wikipedia, Riesel number

Crossrefs

Cf. A101036, A257647, A257861.

Sequence in context: A252776 A271583 A076337 * A101036 A244070 A206430

Adjacent sequences: A258151 A258152 A258153 * A258155 A258156 A258157

Keyword

nonn,changed

Author

Arkadiusz Wesolowski, Nov 05 2015

Status

approved