A216900 Smallest palindromic number of length 6 in two bases differing by n.

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

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: A101701 A092011 A362758 * 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