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A130436 Even pseudoprimes to base 17. 14
4, 8, 16, 1228, 4912, 5662, 11476, 76798, 168904, 387676, 938792, 1003276, 1147576, 1415044, 1419856, 1832836, 2297296, 3976624, 5470126, 6376126, 7309576, 9649624, 12423676, 13193776, 14026888, 14652496, 19136272, 20570936, 24604696 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert G. Wilson v, Table of n, a(n) for n = 1..119

Eric Weisstein's World of Mathematics, Fermat Pseudoprime.

Index entries for sequences related to pseudoprimes

MATHEMATICA

lst = {}; Do[ If[ PowerMod[17, 2n - 1, 2n] == 1, AppendTo[lst, 2n]], {n, 2, 2*10^9}]; lst (* Robert G. Wilson v, Jun 01 2007 *)

CROSSREFS

Cf. A020145, A006935, A130433, A090082, A090083, A090084, A090085, A130434, A130435, A130437, A130438, A130439, A130440, A130441, A130442, A130443.

Sequence in context: A242966 A038110 A241197 * A260306 A074025 A031462

Adjacent sequences:  A130433 A130434 A130435 * A130437 A130438 A130439

KEYWORD

nonn

AUTHOR

Alexander Adamchuk, May 26 2007

EXTENSIONS

a(13)-a(29) from Robert G. Wilson v, Jun 01 2007

STATUS

approved

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Last modified July 13 13:48 EDT 2020. Contains 335688 sequences. (Running on oeis4.)