A216904 - OEIS

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A216904

Smallest palindromic number of length 10 in two bases differing by n.

260311602096, 1161970522902, 3240922809120, 16446205929150, 5681121663231, 86430674537922, 36434748011040, 2119208930874272, 1198501397192925, 850466252340408, 567228097076960, 80847888446187460, 5733768413240616, 12410554422030840, 3028257303808673, 32977836735154716, 27000016202473335, 239720296892530428, 57796746638482600

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OFFSET

2,1

COMMENTS

See comments in A216840 and A216841. Smaller of pair of bases are 15, 17, 19, 24, 20, 25, 23, 36, 34. The A216*** cross-references are other sequences in the collection that includes this one, while A171*** sequences are various record multi-base palindromes.

LINKS

Table of n, a(n) for n=2..20.

EXAMPLE

The first term is 6B882288B6 when written in base 15 and is 2356886532 when written in base 17.

CROSSREFS

Cf. A171701, A171702, A171703, A171704, A171705, A171706, A171740, A171741, A171742, A171775, A216840, A216841, A216843, A216899, A216900, A216901, A216902, A216903, A216905, A216906, A216907, A216908, A216909, A216910.

Sequence in context: A015432 A034618 A226858 * A015418 A271366 A257659

Adjacent sequences: A216901 A216902 A216903 * A216905 A216906 A216907

KEYWORD

nonn,base

AUTHOR

James G. Merickel, Sep 19 2012

EXTENSIONS

a(11)-a(20) from Chai Wah Wu, Aug 19 2015

STATUS

approved