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



(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A216900 Smallest palindromic number of length 6 in two bases differing by n. 16


%S 207702,1102816,546645,34028500,1487484,10652864,17438409,55257336,

%T 12338379,39957792,81828216,235790724,120261375,75954970,166571505,

%U 733418352,276835725,784438752,169796925,433366956,1390393356,2502432704,984536776,5008282776,2289422850

%N Smallest palindromic number of length 6 in two bases differing by n.

%C 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.

%H Chai Wah Wu, <a href="/A216900/b216900.txt">Table of n, a(n) for n = 2..200</a>

%e 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.

%e 1102816 in base 12 and 15 are 452254 and 16bb61 respectively. - _Chai Wah Wu_, Aug 19 2015

%Y 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.

%K nonn,base

%O 2,1

%A _James G. Merickel_, Sep 19 2012

%E More terms and corrected a(3) from _Chai Wah Wu_, Aug 19 2015

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 28 14:19 EDT 2021. Contains 346335 sequences. (Running on oeis4.)