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

[Hans Havermann]

David Wilson:

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

I've just discovered that allowing the internal zeros probably makes for a better sequence and that Giovanni Resta already charted them (under the name "magnanimous"):

http://www.numbersaplenty.com/set/magnanimous_number/

Giovanni, you did not include 20, 101, 1001. Presumably no others.