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Search: id:A132358
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| A132358 |
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a(n) = greatest prime <= 2^(2^n). |
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+0
1
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| 2, 3, 13, 251, 65521, 4294967291, 18446744073709551557, 340282366920938463463374607431768211297, 115792089237316195423570985008687907853269984665640564039457584007913129639747
(list; graph; listen)
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OFFSET
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0,1
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MATHEMATICA
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a={}; For[n=0, n<10, n++, b=2^(2^n); While[ !PrimeQ[b], b=b-1]; AppendTo[a, b]]; a - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Nov 12 2007
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CROSSREFS
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Cf. A132198.
Sequence in context: A132535 A056806 A119564 this_sequence A090100 A132484 A062648
Adjacent sequences: A132355 A132356 A132357 this_sequence A132359 A132360 A132361
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KEYWORD
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nonn
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AUTHOR
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Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Nov 08 2007
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Nov 12 2007
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