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A171702
The first number that is (at least) n-fold intrinsically 3-palindromic (represented in base ten).
25
5, 26, 121, 300, 1009, 1477, 4591, 15049, 35101, 35101, 83161, 176401, 291721, 291721, 720721, 1081081, 1496881, 2106721, 3341521, 3341521, 5654881, 7207201, 8648641, 10810801, 13693681, 15135121, 21621601, 28274401, 28274401, 41081041, 41081041, 41081041
OFFSET
1,1
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..100 [terms a(1)-a(38) computed by Hiroaki Yamanouchi; a(39)-a(100) by Giovanni Resta, Apr 22 2016]
EXAMPLE
a(1)=5 is 101 in base 2.
a(2)=26 is 222 in base 3 and 101 in base 5.
a(3)=121 is 232 in base 7 and 171 in base 8.
KEYWORD
nonn,base
AUTHOR
James G. Merickel, Dec 15 2009
EXTENSIONS
a(21)-a(32) from Hiroaki Yamanouchi, Sep 20 2014
STATUS
approved