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A294135
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Sorted list of prime factors of numbers of the form 9^(2^m) + 2^(2^m) with m >= 0.
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5
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5, 11, 17, 257, 449, 1601, 6577, 20353, 25601, 40961, 65537, 95873, 163841, 176129, 1179649, 8452097, 13631489, 26419201, 32310529, 38031361, 56867009, 59637761, 144310273, 480865793, 697434113, 1572864001, 2013265921, 7547650049, 62872289281, 483049603073
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OFFSET
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1,1
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COMMENTS
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Primes p other than 7 such that the multiplicative order of 9/2 (mod p) is a power of 2.
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LINKS
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PROG
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(PARI) print1(5, ", "11, ", "); forprime(p=17, 483049603073, z=znorder(Mod(9/2, p)); if(2^ispower(z)==z, print1(p, ", ")));
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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