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#12 by Harvey P. Dale at Mon Sep 26 14:13:25 EDT 2016
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#11 by Harvey P. Dale at Mon Sep 26 14:13:20 EDT 2016
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Join[{37}, FromDigits[Flatten[IntegerDigits/@#]]&/@Select[Partition[ Prime[ Range[ 200]], 2, 1], #[[2]]-#[[1]]==4&]] (* Harvey P. Dale, Sep 26 2016 *)
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approved
editing
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#10 by Jon E. Schoenfield at Sun Mar 29 14:18:49 EDT 2015
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#9 by Jon E. Schoenfield at Sun Mar 29 14:18:47 EDT 2015
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s = Select[ Prime[ Range[ 140]], PrimeQ[ # + 4] &]; FromDigits /@ Join @@@ IntegerDigits /@ Transpose[{s, s + 4}] (from }] (* _Robert G. Wilson v _, Mar 19 2005) *)
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approved
editing
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#8 by Russ Cox at Fri Mar 30 18:40:26 EDT 2012
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| FORMULA
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a(n) = A023200(n) concatenated with A023200(n)+4. - . - _Jonathan Vos Post (jvospost3(AT)gmail.com), _, Mar 19 2005
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Discussion
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| Fri Mar 30
| 18:40
| OEIS Server: https://oeis.org/edit/global/228
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#7 by Russ Cox at Fri Mar 30 17:31:11 EDT 2012
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More terms from _Robert G. Wilson v (rgwv(AT)rgwv.com), _, Mar 19 2005
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Discussion
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| Fri Mar 30
| 17:31
| OEIS Server: https://oeis.org/edit/global/156
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#6 by Russ Cox at Fri Mar 30 17:25:43 EDT 2012
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_Parthasarathy Nambi (PachaNambi(AT)yahoo.com), _, Mar 18 2005
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Discussion
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| Fri Mar 30
| 17:25
| OEIS Server: https://oeis.org/edit/global/136
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#5 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010
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M. Wolf, <a href="http://rosewww.ift.uni.wroc.pl/~mwolf/">On Twin and Cousin Primes.</a>
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nonn,base,new
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#4 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009
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a(n) = A023200(n) concatenated with A023200(n)+4. - Jonathan Vos Post (jvospost2jvospost3(AT)yahoogmail.com), Mar 19 2005
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nonn,base,new
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#3 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008
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Eric W. Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/CousinPrimes.html">Cousin Primes.</a>
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nonn,base,new
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