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A171705 The first n-fold intrinsically 6-palindromic number (represented in base ten). 24
33, 207702, 2853326516320 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(4) > 10^17. - Hiroaki Yamanouchi, Aug 22 2015

LINKS

Table of n, a(n) for n=1..3.

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

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

Sequence in context: A060767 A220350 A300614 * A228426 A023928 A022070

Adjacent sequences:  A171702 A171703 A171704 * A171706 A171707 A171708

KEYWORD

more,nonn,bref,base

AUTHOR

James G. Merickel, Dec 17 2009

STATUS

approved

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Last modified March 31 16:02 EDT 2020. Contains 333151 sequences. (Running on oeis4.)