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A173074 Numbers n such that A171715(n)=2*A173073(n). 0

%I #5 Jan 29 2013 21:32:18

%S 5,6,12,21,40,41,74,76,100,136,157,161,403,728,729,738,743,1476

%N Numbers n such that A171715(n)=2*A173073(n).

%C Numbers n such that A171715(n)=2*A173073(n). Or, numbers n such that A007645(n)-A003627(n)=2*(A141468(n)-A001477(n)) where A007645 U A003627 U A141468 = A000040 U A141468 = A001477.

%C No further terms between 1476 and 80000. [From _R. J. Mathar_, May 02 2010]

%F A171715(a(n))=2*A173073(a(n)).

%e a(1)=5 because 8=2*4.

%Y Cf. A000040(the primes), A001477(the nonnegative numbers), A003627(the generalized non-cuban primes), A007645(the generalized cuban primes), A141468 (the nonnegative nonprimes), A171715 (the differences between generalized cuban and non-cuban primes), A173073 (the differences between nonnegative nonprimes and nonnegative numbers).

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Feb 09 2010

%E Terms from 100 up to 1476 from _R. J. Mathar_, May 02 2010

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