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Search: id:A084195
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| A084195 |
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Even numbers n such that the sum of the digits is prime, n/2 is prime and the sum of the digits of n/2 is also prime. |
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+0
1
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OFFSET
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0,1
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EXAMPLE
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5+8=13 for n=58 and 2+9=11 for n/2=29=prime.
1+2+2=5 for n=122 and 6+1=7 for n/2=61=prime.
2+7+8=17 for n=278 and 1+3+9=13 for n/2=139=prime.
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CROSSREFS
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Sequence in context: A005915 A041376 A063537 this_sequence A033856 A143861 A100174
Adjacent sequences: A084192 A084193 A084194 this_sequence A084196 A084197 A084198
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KEYWORD
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base,nonn
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AUTHOR
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CAPELLE Patrick (patrick.capelle(AT)clearwire.be), Jun 20 2003
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