This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A216900 Smallest palindromic number of length 6 in two bases differing by n. 16
 207702, 1102816, 546645, 34028500, 1487484, 10652864, 17438409, 55257336, 12338379, 39957792, 81828216, 235790724, 120261375, 75954970, 166571505, 733418352, 276835725, 784438752, 169796925, 433366956, 1390393356, 2502432704, 984536776, 5008282776, 2289422850 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS Part of a collection.  See comments in A216840 and A216841.  Smaller bases begin with 8, 11, 10, 19, 13.  The A171*** c-refs are to various record multi-base palindromes.  The A216*** ones are the others in this collection. LINKS Chai Wah Wu, Table of n, a(n) for n = 2..200 EXAMPLE 207702 is also a palindrome of 6 digits in base 8, and no smaller number is a palindrome of 6 digits in both of two bases. 1102816 in base 12 and 15 are 452254 and 16bb61 respectively. - Chai Wah Wu, Aug 19 2015 CROSSREFS Cf. A171701, A171702, A171703, A171704, A171705, A171706, A171740, A171741, A171742, A171775, A216840, A216841, A216843, A216899, A216901, A216902, A216903, A216904, A216905, A216906, A216907, A216908, A216909, A216910. Sequence in context: A178285 A101701 A092011 * A072679 A147705 A237971 Adjacent sequences:  A216897 A216898 A216899 * A216901 A216902 A216903 KEYWORD nonn,base AUTHOR James G. Merickel, Sep 19 2012 EXTENSIONS More terms and corrected a(3) from Chai Wah Wu, Aug 19 2015 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 December 9 19:51 EST 2019. Contains 329879 sequences. (Running on oeis4.)