**Numbers n such that 4*n! + 1 is a prime.**

*0, 1, 4, 7, 8, 9, 13, 16, 28, 54, 86, 129, 190, 351, 466, 697, 938, 1510, 3396, 4057*

*2 seqfan posts*

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

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