The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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 (list; graph; refs; listen; history; text; internal format)
 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. CROSSREFS Cf. A171701, A171703, A171704, A171705, A171706, A171740, A171741, A171742. Sequence in context: A211606 A005499 A185552 * A254825 A272123 A285905 Adjacent sequences:  A171699 A171700 A171701 * A171703 A171704 A171705 KEYWORD nonn,base AUTHOR James G. Merickel, Dec 15 2009 EXTENSIONS a(21)-a(32) from Hiroaki Yamanouchi, Sep 20 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 28 05:46 EST 2020. Contains 332321 sequences. (Running on oeis4.)