[seqfan] Re: Is A109924 correct?
franktaw at netscape.net
franktaw at netscape.net
Tue Jun 21 00:33:21 CEST 2011
-----Original Message-----
From: Lars Blomberg <lars.blomberg at visit.se>
>I thought "leading zero" referred to the palindrome, where
>a(10) needs a leading 0 in order to be truly palindromic:
>0,135444,949494,445310
>and it is this leading zero that is suppressed.
Yes. But, as far as being a palindrome, this is exactly
the same as removing the trailing zeros: drop the
trailing zero and you have
135444,949494,44531.
>I still fail to see why
>a(10) = 135444,949494,445310 is correct
>and a(2) = 60 is not.
As the sequence is defined, a(2) should be 60. It appears
that the terms are actually computed allowing only as many
leading/trailing zeros as the base concatenation has. I'm
not sure whether it would be better to change the values or
the definition. Perhaps change the definition, and add a
new sequence with the original definition.
Franklin T. Adams-Watters
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