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%I #15 Aug 01 2025 03:44:02
%S 2,463,45165175457,4161163747708008324368372925882377717624897
%N Primes of form 2^j + 461^j.
%C The number j must be zero or a power of 2. Checked j being powers of two through 2^19. Thus a(5) > 10^2700000. Primes of this magnitude are rare (about 1 in 6.4 million), so chance of finding one is remote with today's computer algorithms and speeds. - _Robert Price_, Apr 29 2013
%e The relevant exponents are powers of 2: 0, 1, 4, 16; a(4) = 65536+461^16 = 4161163747708008324368372925882377717624897.
%Y Cf. A082101, A094473-A094482.
%K nonn
%O 1,1
%A _Labos Elemer_, Jun 01 2004