[seqfan] Re: semiprimes in step-6 arithmetic progression A125025

[hv at crypt.org]

I wrote:
:I think this is the first solution for [a(6) >= ] 16 and 17:
:
:12015573923 [...]

I also find first solution for a(6) >= 18 starting at 6763513182767;
I find no solution for a(6) >= 19 up to 1e14; that search completed in
10 hours with 6 processes.

If anyone is interested in using my code to search further, or for other
values of n, I can tidy up and document it - let me know.

Hugo