[seqfan] Last term?

Eric Angelini Eric.Angelini at kntv.be
Sun Oct 25 07:16:39 CET 2015

Hello SeqFans,
What is the last term of the zeroless seq S?


The length of the successive integers
is given by the successive digits of S
Slenghts = 1,2,1,2,2,2,2,3,2,4,2,5,1,1,1,...

S was always extended with the smallest
integer not occuring earlier and not
leading to a contradiction.

Note that S will show only nine 1's
as there are only nine 1-digit integers
in Z (all zeroes are forbidden in S as
a zero would produce an integer of
length zero later -- which has no sense).
(we could have decided that zero produces 
a 10-digit integer later in the seq. --
but we didn't select this option here).


The seq. P obeys the same rules -- but
all terms of P must be primes: what
is the last term of P? 

Catapulté de mon aPhone

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