[seqfan] Re: Rif: Re: Insert "+" and always get a prime

[David Wilson]

I take it that internal zeroes are not allowed, e.g. 400044049 doesn't pass muster?

> -----Original Message-----
> From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Hans
> Havermann
> Sent: Tuesday, December 23, 2014 5:36 AM
> To: Sequence Fanatics Discussion list
> Subject: [seqfan] Re: Rif: Re: Insert "+" and always get a prime
> 
> John Mason:
> 
> > Continuing Lars's calculations for the "plus" variety:
> > 15177112, ... 117711170
> 
> That takes us to #424. There can't be many more. ;)
> 
> 425 222866845
> 426 331111958
> 427 511151552
> 428 593559374
> 429 622888465
> 430 773719910
> 431 882428665
> 432 995955112
> 433 1777137770
> 434 5753779594
> 435 6464886245
> 436 9151995592
> 437 22226226625
> 438 31993717930
> 439 39393115598
> 440 46884486265
> 
> I've got nothing else to 10^12 but I'll go to 10^13 just in case.
> 
> 
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