A216909 Smallest palindromic number of length 15 in two bases differing by n.

4712469842177, 14192598568359611, 389035682624908873, 11713091929744317938, 110566060844648951845

Offset: 1

Author

James G. Merickel, Sep 19 2012

Keywords

• nonn
• base

Comments

See comments to A216840 and A216841. Smaller of pair of bases are 7, 12, 15, 19, 22. A216*** sequences in cross-reference are others in a collection including this one, while A171*** ones are various multi-base palindrome records.

Examples

			The first term is 664315252513466 in base 7 and 104446505644401 in base 8.
		

Crossrefs

Cf. A171701, A171702, A171703, A171704, A171705, A171706, A171740, A171741, A171742, A171775, A216840, A216841, A216843, A216899, A216900, A216901, A216902, A216903, A216904, A216905, A216906, A216907, A216908, A216910.