A104189 - OEIS

A104189

Prime numbers arising from Schorn's proof that there are infinitely many primes.

2, 3, 5, 7, 13, 19, 73, 97, 241, 601, 2161, 15121, 20161, 30241, 35281, 161281, 241921, 282241, 1088641, 1451521, 2177281, 2903041, 10886401, 18144001, 29030401, 32659201, 39916801, 199584001, 319334401, 958003201, 2395008001, 2874009601

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

REFERENCES

Paolo Ribenboim, "The New Book of Prime Number Records", 1996, ISBN 0-387-94457-5 Page 5

LINKS

Table of n, a(n) for n=1..32.

R. Mestrovic, Euclid's theorem on the infinitude of primes: a historical survey of its proofs (300 BC--2012) and another new proof, arXiv preprint arXiv:1202.3670 [math.HO], 2012-2018. - From N. J. A. Sloane, Jun 13 2012

Peter Schorn, Schorn's Proof

www.mathematic.de, Schorn's proof

FORMULA

n!*i+1, where 1 <= i <= n and n!*i+1 is a prime.

EXAMPLE

6!*3+1 = 2161 is prime and is a term.

MATHEMATICA

lst={}; Do[lst=Join[lst, Select[n!Range[n]+1, PrimeQ]], {n, 12}]; lst (* T. D. Noe, Nov 02 2006 *)

CROSSREFS

Sequence in context: A147485 A341650 A341640 * A301776 A178570 A294443

Adjacent sequences: A104186 A104187 A104188 * A104190 A104191 A104192

KEYWORD

nonn

AUTHOR

Karsten Meyer, Mar 12 2005; extended Jun 08 2005

EXTENSIONS

Corrected by T. D. Noe, Nov 02 2006

STATUS

approved