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A068188
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Tetradic primes (primes in A006072).
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4
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11, 101, 181, 18181, 1008001, 1180811, 1880881, 1881881, 100111001, 100888001, 108101801, 110111011, 111010111, 111181111, 118818811, 180101081, 181111181, 181888181, 188010881, 188888881, 10008180001, 10081818001
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Primes that are palindromes and use only the digits 0, 1 and 8, so they read the same backwards and upside down.
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LINKS
| Eric Weisstein's World of Mathematics, Tetradic Number
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CROSSREFS
| Sequence in context: A007597 A061247 A199328 * A032592 A180404 A142317
Adjacent sequences: A068185 A068186 A068187 * A068189 A068190 A068191
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KEYWORD
| nonn,easy,base
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com), Feb 18, 2002
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EXTENSIONS
| Edited by Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu), Jun 02, 2003
Offset corrected by Arkadiusz Wesolowski, Oct 17 2011
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