|
| |
|
|
A106745
|
|
Numbers n such that 101101 * 10^n + 1 is prime.
|
|
2
| |
|
|
5, 6, 7, 12, 21, 25, 300, 305, 600, 689, 742, 1418, 1547, 1744, 5275, 6355, 7477, 15312, 16772, 33047
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| These are anti-Yarborough primes, i.e. primes containing just 1's and 0's and they have all been certified. Primality proof for the largest: PFGW Version 20041001.Win_Stable (v1.2 RC1b) [FFT v23.8] Primality testing 101101*10^33047+1 [N-1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 3 Calling Brillhart-Lehmer-Selfridge with factored part 69.89% 101101*10^33047+1 is prime! (194.9694s+0.0907s)
|
|
|
LINKS
| R. Ondrejka, The Top Ten: a Catalogue of Primal Configurations.
|
|
|
CROSSREFS
| Cf. A020449.
Sequence in context: A022566 A047320 A011761 * A165776 A003273 A006991
Adjacent sequences: A106742 A106743 A106744 * A106746 A106747 A106748
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), May 16 2005
|
| |
|
|
