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A263865
Odd k for which abs(2^m - k) is nonprime for all m < k.
0
1, 337, 2293, 4327, 6247, 6269, 12749, 13603, 14023, 14347, 14407, 15997, 21673, 25229, 31511, 36971, 47107, 48703, 48959
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Related to the problem in A076337.
LINKS
Table of n, a(n) for n=1..19.
PROG
(PARI) forstep(k=1, 6269, 2, c=m=0; while(m<k, if(ispseudoprime(abs(2^m-k)), c=1; break); m++); if(c==0, print1(k, ", ")));
CROSSREFS
Cf. A076337, A101036.
Sequence in context: A160069 A201852 A251271 * A184202 A194478 A084231
Adjacent sequences: A263862 A263863 A263864 * A263866 A263867 A263868
KEYWORD
nonn,more
AUTHOR
Arkadiusz Wesolowski, Oct 28 2015
STATUS
approved

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Last modified December 12 09:30 EST 2024. Contains 378649 sequences.
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