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 A097959 Primes p such that p divides 6^(p-1)/2 - 5^(p-1)/2. 0
 7, 13, 17, 19, 29, 37, 71, 83, 101, 103, 107, 113, 127, 137, 139, 149, 157, 191, 211, 223, 227, 233, 239, 241, 257, 269, 277, 311, 331, 347, 353, 359, 367, 373, 379, 389, 397, 409, 431, 443, 461, 463, 467, 479, 487, 499, 509, 563, 571, 587, 593, 599, 601, 607 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE 6^3 - 5^3 = 7*13 PROG (PARI) \s = +-1, d=diff ptopm1d2(n, x, d, s) = { forprime(p=3, n, p2=(p-1)/2; y=x^p2 + s*(x-d)^p2; if(y%p==0, print1(p", "))) } CROSSREFS Sequence in context: A079695 A079698 A038906 * A156543 A090863 A045979 Adjacent sequences:  A097956 A097957 A097958 * A097960 A097961 A097962 KEYWORD nonn AUTHOR Cino Hilliard (hillcino368(AT)gmail.com), Sep 06 2004 STATUS approved

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