A171430 Primes that are congruent to 3 mod n, where n is the index of the prime.

2, 3, 7, 17, 19, 127, 131, 139, 373, 383, 8419, 64553, 175211, 3523901, 3524713, 70115789, 514273231, 514275283, 1394194363, 1394197423, 1394197543, 1394198683, 1394198863, 1394199083, 1394199263, 1394199283, 10246935823, 204475053103, 4086199302923, 11091501631097

Offset

1,1

Links

Giovanni Resta, Table of n, a(n) for n = 1..46

Example

Mod(7,4)=3, Mod(17,7)=3.

Mathematica

Prime@ Select[Range[10^5], Mod[Prime[#] - 3, #] == 0 &] (* Giovanni Resta, Feb 25 2020 *)

Crossrefs

Cf. A023145, A048891.

Sequence in context: A350118 A256917 A089144 * A355419 A045332 A045333

Adjacent sequences: A171427 A171428 A171429 * A171431 A171432 A171433

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Dec 08 2009

Extensions

a(14) from Harvey P. Dale, Oct 21 2016

Terms a(1)-a(2), a(17) and beyond from Giovanni Resta, Feb 23 2020

Status

approved