login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A200259 Numbers n such that n-th prime has an even digit sum. 4
1, 5, 6, 7, 8, 11, 12, 16, 17, 20, 21, 22, 25, 26, 27, 28, 29, 31, 35, 38, 39, 42, 47, 51, 52, 54, 55, 58, 59, 62, 63, 69, 70, 73, 76, 77, 81, 83, 84, 85, 88, 92, 94, 95, 96, 97, 98, 99, 100, 101, 103, 104, 107, 112, 113, 114, 115, 119, 120, 122, 123, 125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

T. D. Noe, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[1000], EvenQ[Total[IntegerDigits[Prime[#]]]] &] (* T. D. Noe, Nov 21 2011 *)

PROG

(MAGMA) [ n: n in [1..169] | IsEven(&+Intseq(NthPrime(n)))];  // Bruno Berselli, Nov 15 2011

CROSSREFS

Sequence in context: A319266 A263093 A115839 * A339746 A262513 A130206

Adjacent sequences:  A200256 A200257 A200258 * A200260 A200261 A200262

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Nov 15 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 18 12:35 EDT 2021. Contains 347527 sequences. (Running on oeis4.)