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A133282
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Numbers k such that googol - k is an upper twin prime.
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3
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35217, 85077, 253407, 326271, 343131, 349527, 356667, 408609, 471729, 517707, 582069, 613299, 614997, 661947, 667827, 793359, 810099, 852579, 876687, 960897, 1006041, 1023807, 1076211, 1089411, 1102461, 1179807, 1264467, 1355997, 1384617, 1649049, 1652127, 1661799
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OFFSET
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1,1
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COMMENTS
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Googol = 10^100.
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LINKS
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MATHEMATICA
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Select[Range[10^6], And @@ PrimeQ[10^100 - # - {0, 2}] &] (* Amiram Eldar, Dec 26 2019 *)
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PROG
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(PARI) googol2(n) = { local(x, a, j); x=10^100; forstep(j=1, 1000000, 2, a=x-j; if(ispseudoprime(a)&ispseudoprime(a-2), print1(j", "); ); ) }
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CROSSREFS
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KEYWORD
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nonn,fini
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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