login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A130439 Even pseudoprimes to base 29. 14
4, 14, 28, 52, 268, 364, 1876, 3484, 5356, 7294, 24388, 66788, 283276, 286492, 339556, 404236, 860692, 1153684, 1381132, 1478764, 1696708, 2073722, 2182726, 2222122, 4922164, 7790146, 8200036, 9679138, 10881052, 14863516, 15476266 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert G. Wilson v, Table of n, a(n) for n = 1..121.

Eric Weisstein's World of Mathematics, Fermat Pseudoprime.

Index entries for sequences related to pseudoprimes

MATHEMATICA

Do[ f=PowerMod[ 29, 2n-1, 2n ]; If[ f==1, Print[ 2n ] ], {n, 2, 500000} ]

lst = {}; Do[ If[ PowerMod[17, 2n - 1, 2n] == 1, AppendTo[lst, 2n]], {n, 2, 2^31}]; lst (* Robert G. Wilson v, Jun 01 2007 *)

CROSSREFS

Cf. A020157, A006935, A130433, A090082, A090083, A090084, A090085, A130434, A130435, A130436, A130437, A130438, A130440, A130441, A130442, A130443.

Sequence in context: A200546 A304342 A066907 * A289179 A033690 A316213

Adjacent sequences:  A130436 A130437 A130438 * A130440 A130441 A130442

KEYWORD

nonn

AUTHOR

Alexander Adamchuk, May 26 2007

EXTENSIONS

More terms from Robert G. Wilson v, Jun 01 2007

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 26 18:08 EDT 2020. Contains 334630 sequences. (Running on oeis4.)