[seqfan] Re: Two neighboring digits sum up to a prime

Hans Havermann gladhobo at teksavvy.com
Fri Apr 27 23:54:15 CEST 2012

Maximilian Hasler: "I wonder whether it makes sense to create the "new  
S" for any subset of {0...18} which yields a nontrivial result.... But  
why not, after all this will yield a finite and relatively small  
number of additional sequences..."

me: "Aren't there a total of 524287 subsets? Do we know that most of  
these are trivial?"

Maximilian Hasler: "Not quite - e.g., any set without terms in  
[10,...,18] leads to a
finite sequence..."

That's 1023 down, 523264 to go.

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