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Search: id:A075807
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| A075807 |
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Numbers n such that n-th prime is palindromic. |
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+0
2
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| 1, 2, 3, 4, 5, 26, 32, 36, 42, 43, 65, 71, 74, 76, 129, 134, 138, 139, 157, 158, 1263, 1285, 1293, 1367, 1377, 1483, 1519, 1528, 1583, 1635, 1647, 1682, 1726, 1805, 1814, 1867, 1897, 1917, 1928, 2009, 2060, 2083, 2117, 2196, 2250, 2260, 3255, 3267, 3285
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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26-th prime is 101, which is palindromic.
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MAPLE
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test := proc(n) local d; d := convert(ithprime(n), base, 10); return ListTools[Reverse](d)=d; end; a := []; for n from 1 to 4000 do if test(n) then a := [op(a), n]; end; od; a;
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CROSSREFS
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Cf. A002385, A069217.
Sequence in context: A037400 A080695 A088865 this_sequence A124232 A051143 A084853
Adjacent sequences: A075804 A075805 A075806 this_sequence A075808 A075809 A075810
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KEYWORD
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nonn,base
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AUTHOR
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Jani Melik (jani_melik(AT)hotmail.com), Oct 13 2002
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EXTENSIONS
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Edited by Dean Hickerson (dean(AT)math.ucdavis.edu), Oct 21 2002
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