

A216901


Smallest palindromic number of 7 digits in two bases differing by n.


16



186621, 532900, 1857351, 9046409, 17439233, 69012421, 146766357, 289744476, 347411351, 390219121, 1200809057, 1393838392, 3088676989, 2383346701, 3333147809, 6041072349, 6819663132, 7822398453, 9534770061, 12359264257, 18701296795, 20196246357, 25763014657
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OFFSET

1,1


COMMENTS

See comments to A216840 and A216841. Smaller of pair of bases are 6, 7, 8, 10, 11, 14, 15, 17, 17, 17. The A216*** crossreferences here are other sequences of this collection, while the A171*** ones are to various multibase record palindromes.


LINKS



EXAMPLE

9046409 is also a 7digit palindrome in base 14 (in addition to decimal). No smaller number is a 7digit palindrome in both of two bases that differ by 4.


CROSSREFS

Cf. A171701, A171702, A171703, A171704, A171705, A171706, A171740, A171741, A171742, A171775, A216840, A216841, A216843, A216899, A216900, A216902, A216903, A216904, A216905, A216906, A216907, A216908, A216909, A216910.


KEYWORD

nonn,base


AUTHOR



EXTENSIONS



STATUS

approved



