[seqfan] Neighbor digits sum to a palindrome
Eric Angelini
Eric.Angelini at kntv.be
Fri May 10 19:13:42 CEST 2013
Hello SeqFans,
two little thingies (with no typos, I hope):
Seq (1):
a(n)<a(n+1) and two consecutive digits (regardless of the commas) sum
to a palindrome (in base 10):
S(1)=1,2,3,4,5,6,10,11,12,13,14,15,16,17,18,30,31,32,33,34,35,36,38,100,101,...
Seq (2):
Smallest positive integer not yet in S(2) such that two consecutive
digits (regardless of the commas) sum to a palindrome (in base 10):
S(2)=1,2,3,4,5,6,10,7,11,8,12,9,20,13,14,15,16,17,18,30,20,21,22,23,24,25,26,...
Best,
É.
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