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A087166 Primes which are palindromes in 3 or more bases. 0
17, 31, 37, 41, 43, 67, 71, 73, 107, 109, 113, 127, 131, 151, 157, 173, 181, 191, 193, 197, 199, 211, 227, 229, 233, 239, 241, 251, 257, 271, 277, 281, 307, 313, 337, 353, 373, 379, 383, 401, 409, 419, 421, 431, 433, 443, 449, 457, 461, 463, 467, 479, 487 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

31 is in the list, as 31 base 2 = 11111, 31 base 5 = 111 and 31 base 30 = 11, i.e. three different ways.

CROSSREFS

Sequence in context: A124884 A052006 A002675 * A095748 A172287 A062579

Adjacent sequences:  A087163 A087164 A087165 * A087167 A087168 A087169

KEYWORD

base,nonn

AUTHOR

Randy L. Ekl (Randy.Ekl(AT)Motorola.com), Oct 18 2003

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.