References to A020467

Primes that contain digits 5 and 7 only.
5, 7, 557, 577, 757, 5557, 7577, 7757, 57557, 75557, 75577, 77557, 555557, 575557

1 seqfan posts

Thu Mar 18 05:03:57 CET 2010    [seqfan] Re: Oh, To Offend (PS)
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
Links to OEIS content are included according to The OEIS End-User License Agreement .