[seqfan] A problem with de Polignac numbers
Tomasz Ordowski
tomaszordowski at gmail.com
Sun Aug 23 20:34:21 CEST 2020
Dear readers,
I have a hard problem:
Are there de Polignac numbers k>1 such that
k-2^n is a Polignac number for every 1<2^n<k
?
These are odd integers k>3 such that
every positive value of k-2^m-2^n is not prime
for m>=0 and n>=0.
Attention, expect big numbers!
Successful searches!
Thomas Ordowski
____________________
https://oeis.org/A006285
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