**Composite numbers n such that 2^(n-4)=1 (mod n).**

*4, 40369, 673663, 990409, 1697609, 2073127, 6462649, 7527199, 7559479*

*4 seqfan posts*

*Sun Feb 21 16:10:55 CET 2010* [seqfan] Re: relation A033984 and A173138, solutions of mod n equations

*Sun Feb 21 16:10:55 CET 2010* [seqfan] Re: relation A033984 and A173138, solutions of mod n equations

*Sun Feb 21 15:50:41 CET 2010* [seqfan] Re: relation A033984 and A173138, solutions of mod n equations

*Sun Feb 21 15:34:05 CET 2010* [seqfan] relation A033984 and A173138, solutions of mod n equations

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

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