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A046883 Automorphic primes: primes p such that p is k-th prime and p ends in k. 7
17, 99551, 4303027, 6440999, 14968819, 95517973, 527737957, 1893230839, 1246492090901, 12426836115943, 21732382677641, 154895576080181 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(13) > 10^15. [From Donovan Johnson, Mar 26 2010]

LINKS

Table of n, a(n) for n=1..12.

Index entries for sequences related to automorphic numbers

EXAMPLE

p(7)=17, p(9551)=99551, p(303027)=4303027, p(440999)=6440999, p(968819)=14968819, p(5517973)=95517973.

MATHEMATICA

Do[ If[ Mod[ Prime[n], 10^Ceiling[ Log[10, n]]] == n, Print[n]], {n, 1, 100000000, 2}] (* Robert G. Wilson v, May 21 2004 *)

CROSSREFS

Cf. A067248, A068575, A075902, A046884.

Sequence in context: A075902 A013760 A078351 * A046884 A269442 A203677

Adjacent sequences:  A046880 A046881 A046882 * A046884 A046885 A046886

KEYWORD

base,nice,nonn

AUTHOR

Felice Russo and Carlos Rivera

EXTENSIONS

One more term from Zak Seidov, Sep 27 2002

Corrected by Lior Manor Oct 14 2002

a(7), a(8) from Robert G. Wilson v, May 21 2004

a(9)-a(12) from Donovan Johnson, Mar 26 2010

STATUS

approved

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Last modified February 19 10:13 EST 2019. Contains 320310 sequences. (Running on oeis4.)