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Search: id:A114926
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| A114926 |
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Numbers n such that pi(n)=reversal(n)-n. |
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+0
2
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| 1, 23, 526, 536, 1802, 4735, 17191, 38524, 235652, 36235483
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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There is no further term up to 3*10^8.
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EXAMPLE
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36235483 is in the sequence because pi(36235483)=2217780= 38453263-36235483=reversal(36235483)-36235483.
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MATHEMATICA
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Do[If[PrimePi[n]==FromDigits[Reverse[IntegerDigits[n]]] -n, Print[n]], {n, 30000000}]
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CROSSREFS
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Cf. A072393, A119926.
Sequence in context: A133283 A121903 A136285 this_sequence A118338 A097778 A057193
Adjacent sequences: A114923 A114924 A114925 this_sequence A114927 A114928 A114929
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KEYWORD
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base,more,nonn
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AUTHOR
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Farideh Firoozbakht (mymontain(AT)yahoo.com), Feb 03 2006
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