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 A200261 a(n) = 1 iff n-th prime has an even digit sum. 4
 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1 COMMENTS Characteristic function of A200259. LINKS T. D. Noe, Table of n, a(n) for n = 1..1000 MATHEMATICA Table[1 - Mod[Total[IntegerDigits[Prime[n]]], 2], {n, 100}] (* T. D. Noe, Nov 21 2011 *) PROG (Magma) [IsEven(&+Intseq(NthPrime(n))) select 1 else 0: n in [1..100]]; // Bruno Berselli, Nov 15 2011 CROSSREFS Cf. A200259, A200263. Sequence in context: A303561 A284680 A004555 * A288855 A138711 A285617 Adjacent sequences: A200258 A200259 A200260 * A200262 A200263 A200264 KEYWORD nonn,base,changed AUTHOR N. J. A. Sloane, Nov 15 2011 STATUS approved

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Last modified March 26 02:36 EDT 2023. Contains 361529 sequences. (Running on oeis4.)