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A140658 Overpseudoprimes to bases 2 and 3. 0
5173601, 13694761, 16070429, 27509653, 54029741, 66096253 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

From the first 19 strong pseudoprimes to bases 2 and 3 (A072276) only 6 are overpseudoprimes to the same bases.

CROSSREFS

Cf. A141232 A141350 A001262 A020229 A072276.

Sequence in context: A206136 A186624 A157844 * A172715 A125780 A183746

Adjacent sequences:  A140655 A140656 A140657 * A140659 A140660 A140661

KEYWORD

nonn

AUTHOR

Vladimir Shevelev (shevelev(AT)bgu.ac.il), Jul 10 2008

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Last modified February 14 08:58 EST 2012. Contains 205614 sequences.