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7, 9, 21, 261, 65541, 4294967301, 18446744073709551621, 340282366920938463463374607431768211461, 115792089237316195423570985008687907853269984665640564039457584007913129639941
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| D. M. Burton, Elementary Number Theory, Allyn and Bacon Inc., Boston, MA, 1976, p. 238.
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LINKS
| Harry J. Smith, Table of n, a(n) for n=0,...,11
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PROG
| (PARI) for(n=0, 8, print(2^(2^n)+5))
(PARI) { for (n=0, 11, write("b063486.txt", n, " ", 2^(2^n) + 5) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 23 2009]
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CROSSREFS
| Cf. A000215.
Sequence in context: A147068 A147012 A032394 * A070423 A018882 A179788
Adjacent sequences: A063483 A063484 A063485 * A063487 A063488 A063489
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KEYWORD
| easy,nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Jul 28 2001
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