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%I #15 Mar 20 2023 13:05:39
%S 0,1,1,1,0,0,0,0,1,1,0,0,1,1,1,0,0,1,1,0,0,0,1,1,0,0,0,0,0,1,0,1,1,1,
%T 0,1,1,0,0,1,1,0,1,1,1,1,0,1,1,1,0,0,1,0,0,1,1,0,0,1,1,0,0,1,1,1,1,1,
%U 0,0,1,1,0,1,1,0,0,1,1,1,0,1,0,0,0,1
%N a(n) = 1 iff n-th prime has an odd digit sum.
%C Characteristic function of A200260.
%H T. D. Noe, <a href="/A200263/b200263.txt">Table of n, a(n) for n = 1..1000</a>
%t If[OddQ[Total[IntegerDigits[#]]],1,0]&/@Prime[Range[100]] (* _Harvey P. Dale_, Jul 08 2019 *)
%o (Magma) [IsOdd(&+Intseq(NthPrime(n))) select 1 else 0: n in [1..100]]; // Bruno Berselli, Nov 15 2011
%Y Cf. A200260, A200261.
%K nonn,base
%O 1
%A _N. J. A. Sloane_, Nov 15 2011
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