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%I #11 Nov 21 2013 12:46:28
%S 2,3,5,7,23,29,41,43,47,61,67,83,89,101,103,107,109,127,149,163,167,
%T 181,307,347,349,367,383,389,503,509,521,523,541,547,563,569,587,701,
%U 709,727,743,761,769,787,907,929,941,947,967,983,2129,2141,2143,2161,2309
%N Primes in which parity of digits alternates.
%H Reinhard Zumkeller, <a href="/A030144/b030144.txt">Table of n, a(n) for n = 1..10000</a>
%F A010051(a(n)) * A228710(a(n)) = 1. - _Reinhard Zumkeller_, Aug 31 2013
%e 2129 is a term as 2, 1, 2 and 9 have even and odd parity alternately.
%t Join[{2,3,5,7},Select[Prime[Range[400]],Union[Abs[Differences[Boole/@ EvenQ[ IntegerDigits[#]]]]] == {1}&]] (* _Harvey P. Dale_, Jul 26 2011 *)
%o (Haskell)
%o a030144 n = a030144_list !! (n-1)
%o a030144_list = filter ((== 1) . a228710) a000040_list
%o -- _Reinhard Zumkeller_, Aug 31 2013
%Y Intersection of A000040 and A030141.
%Y Cf. A030143, A030152.
%K nonn,base
%O 1,1
%A _Patrick De Geest_
%E Offset corrected by _Reinhard Zumkeller_, Aug 31 2013
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