A258154 - OEIS

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A258154

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

2

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

(list; graph; refs; listen; history; text; internal format)

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

AUTHOR

Arkadiusz Wesolowski, Nov 05 2015

STATUS

approved