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A171705
The first n-fold intrinsically 6-palindromic number (represented in base ten).
24
33, 207702, 2853326516320
OFFSET
1,1
COMMENTS
a(4) > 10^17. - Hiroaki Yamanouchi, Aug 22 2015
EXAMPLE
a(2)=207702 is 625526 in base 8.
a(3)=2853326516320 is 6-palindromic for the first of three times with (54)(137)(69)(69)(137)(54) in base 139.
CROSSREFS
KEYWORD
more,nonn,bref,base
AUTHOR
James G. Merickel, Dec 17 2009
STATUS
approved