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A144247 Prime numbers of the form 11^k +- 10. 1
131, 1321, 214358891, 505447028499293761, 5559917313492231491, 895430243255237372246521, 20796505671840591460586660430317517562942313712635618374571 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next terms are

539407797827634189900210968137750826278309533633974732577186113975171

and 18621820132595144528407508578788012958402726053563392593510831217730632927190897881.

The next larger term is 11^273 - 10 and there are no further terms for k < 1001.

It is conjectured that 131 is the only palindrome in the sequence.

LINKS

Table of n, a(n) for n=1..7.

CROSSREFS

Cf. A000040, A000668, A144231, A144232, A144233, A144234, A144236, A144242, A144245, A144246

Sequence in context: A281393 A169645 A221154 * A161197 A254641 A322881

Adjacent sequences:  A144244 A144245 A144246 * A144248 A144249 A144250

KEYWORD

nonn

AUTHOR

Reikku Kulon, Sep 15 2008

STATUS

approved

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Last modified December 12 09:36 EST 2019. Contains 329953 sequences. (Running on oeis4.)