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A103401 Numbers n such that n211 is prime. 6
0, 4, 6, 7, 10, 12, 18, 19, 21, 27, 28, 30, 33, 34, 49, 58, 61, 63, 67, 72, 75, 84, 87, 88, 96, 105, 108, 109, 111, 115, 118, 126, 130, 135, 142, 147, 150, 154, 157, 163, 165, 168, 175, 177, 180, 181, 184, 186, 187, 199, 201, 205, 214, 216, 223, 228, 234, 235, 249, 256, 258, 259, 264, 268, 271, 279 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also numbers such that 1000*n+211 is prime. - Stefan Steinerberger, Feb 12 2006

LINKS

Table of n, a(n) for n=1..66.

EXAMPLE

If n=27, then n211 = 27211 (prime).

If n=72, then n211 = 72211 (prime).

MATHEMATICA

For[n = 0, n < 220, n++, If[PrimeQ[1000*n + 211], Print[n]]] (* Stefan Steinerberger, Feb 12 2006 *)

PROG

(MAGMA) [ n: n in [0..700] | IsPrime(Seqint([1, 1, 2] cat Intseq(n))) ]; // Vincenzo Librandi, Feb 03 2011

CROSSREFS

Cf. A103118, A102624.

Sequence in context: A089532 A285254 A326227 * A285091 A286485 A277572

Adjacent sequences:  A103398 A103399 A103400 * A103402 A103403 A103404

KEYWORD

base,nonn

AUTHOR

Parthasarathy Nambi, Mar 20 2005

EXTENSIONS

More terms from Stefan Steinerberger, Feb 12 2006

STATUS

approved

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Last modified November 19 11:46 EST 2019. Contains 329319 sequences. (Running on oeis4.)