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A062852
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Largest n-digit strong pseudoprimes (in base 2).
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5
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8321, 90751, 983401, 9995671, 99789673, 999828727, 9998721001, 99973476433, 999855751441, 9998974546471, 99999760517281, 999985147456681, 9999952887414577, 99999984319096601, 999999916795882627, 9999999995077192591
(list; graph; refs; listen; history; internal format)
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OFFSET
| 4,1
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LINKS
| Patrick De Geest, Smallest n-digit pseudoprimes(base 2)
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EXAMPLE
| a(1)=8321 since 8321 is the largest 4-digit strong pseudoprime to base 2.
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CROSSREFS
| Cf. A001567, A068216, A067845, A001262, A062568.
Sequence in context: A031769 A206192 A170778 * A124414 A124415 A031947
Adjacent sequences: A062849 A062850 A062851 * A062853 A062854 A062855
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KEYWORD
| hard,nonn,base
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AUTHOR
| Shyam Sunder Gupta (guptass(AT)rediffmail.com), Feb 13 2002
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EXTENSIONS
| Edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Nov 01 2009
a(16)-a(19) from Charles R Greathouse IV, Mar 14, 2011
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