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Search: id:A133207
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| A133207 |
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Strobogrammatic non-palindromic primes. |
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+0
1
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| 619, 16091, 19861, 61819, 116911, 119611, 160091, 169691, 191161, 196961, 686989, 688889, 1068901, 1160911, 1190611, 1191611, 1681891, 1690691, 1898681, 1908061, 1960961, 1990661, 6081809, 6100019, 6108019, 6110119, 6608099, 6610199
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Primes which are invariant under a 180 degree rotation, but do not have a mirror symmetry.
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MATHEMATICA
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Select[Range[10000000], PrimeQ[ # ] && Union[IntegerDigits[ # ], {0, 1, 6, 8, 9}] == {0, 1, 6, 8, 9} && Reverse[IntegerDigits[ # ] /. {6 -> 9, 9 -> 6} ] == IntegerDigits[ # ] && Reverse[IntegerDigits[ # ]] != IntegerDigits[ # ] &]
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CROSSREFS
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Cf. The elements of this sequence are the elements of A007597 (Strobogrammatic primes) excluding the elements of A068188 (Tetradic primes).
Sequence in context: A108818 A020377 A118467 this_sequence A010031 A035479 A043368
Adjacent sequences: A133204 A133205 A133206 this_sequence A133208 A133209 A133210
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KEYWORD
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base,nonn
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AUTHOR
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Tanya Khovanova (tanyakh(AT)yahoo.com), Oct 10 2007
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