**Primes of the form x^2+4*x*y-4*y^2 (as well as of the form x^2+6*x*y+y^2).**

*17, 41, 73, 89, 97, 113, 137, 193, 233, 241, 257, 281, 313, 337, 353, 401, 409, 433*

*3 seqfan posts*

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

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