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A055552 Number of base-2 strong pseudoprimes (A001262) less than 10^n. 3
0, 0, 0, 5, 16, 46, 162, 488, 1282, 3291, 8607, 22407, 58892, 156251, 419489, 1135860, 3115246, 8646507, 24220195 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
Eric Weisstein's World of Mathematics, Pseudoprime
Eric Weisstein's World of Mathematics, Strong Pseudoprime
CROSSREFS
Cf. A001262.
Sequence in context: A071101 A110580 A351283 * A086750 A086749 A194541
KEYWORD
nonn,hard,more
AUTHOR
EXTENSIONS
Corrected by Shyam Sunder Gupta, Mar 04 2002
a(14)-a(15) from Charles R Greathouse IV, Aug 15 2006
a(16)-a(19) from Charles R Greathouse IV, Mar 14 2011
STATUS
approved

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Last modified March 19 03:20 EDT 2024. Contains 370952 sequences. (Running on oeis4.)