[seqfan] Add (to me) my even biggest digit
Eric Angelini
Eric.Angelini at kntv.be
Sun Oct 12 21:03:48 CEST 2014
Hello SeqFans,
I'm playing around with integers to
which one would add their biggest
even digit.
The rule:
> To get a(n+1), add to a(n) its biggest
even digit. Iterate.
Is there an infinite such sequence?
If yes, it might start with a(1)=2:
E=2,4,8,16,22,24,28,36,42,46,52,54,
58,66,72,74,78,86,94,98,106,...
But I'm not sure E won't stop at some
point.
This is because the sequence starting
for instance with a(1)=804 indeed
stops:
804,812,820,... ,884,892, 900 END.
Best,
É.
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