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The first n-fold intrinsically 6-palindromic number (represented in base ten).
24

%I #17 Aug 22 2015 06:06:45

%S 33,207702,2853326516320

%N The first n-fold intrinsically 6-palindromic number (represented in base ten).

%C a(4) > 10^17. - _Hiroaki Yamanouchi_, Aug 22 2015

%e a(2)=207702 is 625526 in base 8.

%e a(3)=2853326516320 is 6-palindromic for the first of three times with (54)(137)(69)(69)(137)(54) in base 139.

%Y Cf. A171701, A171702, A171703, A171704, A171706.

%K more,nonn,bref,base

%O 1,1

%A _James G. Merickel_, Dec 17 2009

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Last modified September 21 15:43 EDT 2024. Contains 376087 sequences. (Running on oeis4.)