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A200261 a(n) = 1 iff n-th prime has an even digit sum. 3
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

Sequence in context: A303561 A284680 A004555 * A288855 A138711 A285617

Adjacent sequences:  A200258 A200259 A200260 * A200262 A200263 A200264

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Nov 15 2011

STATUS

approved

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Last modified June 18 20:45 EDT 2021. Contains 345121 sequences. (Running on oeis4.)