[seqfan] swapping primes and non-primes A026234 vs A167419

Richard Mathar mathar at strw.leidenuniv.nl
Wed Nov 4 14:44:28 CET 2009

Is A167419 an erroneous version of A026234?
Basically I do not understand what defines A167419 . If we place
non-primes at prime indices/positions and vice versa we get A026234.
Is A167419 intending to be different if we replace "Exchange" by something
more precise (perhaps with adjustment for inflation in the exchange rates?)



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