[seqfan] a(n-1)+a(n) = palindrome
Eric Angelini
Eric.Angelini at kntv.be
Tue Oct 19 14:58:03 CEST 2010
Hello SeqFans,
This is (I guess) the lexicographically first sequence
with a(1)=1 and a(n-1)+a(n)= a palindrome number (see
http://www.research.att.com/~njas/sequences/A002113)
S = 1,2,3,4,5,6,16,17,27,28,38,39,49,50,52,14,8,25,19,36,
30,47,41,58,43,12,10,23,21,34,32,45,54,57,13,20,24,31,35,
42,46,53,48,7,15,18,26,29,37,40,59,62,69,72,79,22,11,33,44,
55,56,65,66,75,76,85,86,95,96,...
I think this is a permutation of the naturals.
Best,
É.
[Next week I'll compute the similar sequence T, where
a(n)+n = palindrome]
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