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A180951 Primes such that p(i)+p(i+1)+p(i+2) is a prime when all addends are taken modulo 10. 1
5, 7, 11, 13, 17, 23, 29, 37, 41, 43, 47, 53, 59, 67, 71, 83, 89, 97, 101, 103, 107, 109, 113, 131, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 233, 239, 251, 257, 263, 269, 277, 281, 283, 293, 307, 311, 313, 337, 347, 353 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Is also the sum of last digit of three consecutive primes resulting in a prime.

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

EXAMPLE

a(5)=17 since 17 (mod10)+ 19 (mod 10)+ 23 (mod 10)= 7+9+3=19 is a prime.

MATHEMATICA

Transpose[Select[Partition[Prime[Range[100]], 3, 1], PrimeQ[ Total[ Mod[ #, 10]]]&]] [[1]] (* Harvey P. Dale, Oct 20 2014 *)

CROSSREFS

Cf. A000040

Sequence in context: A216741 A290507 A139812 * A040146 A243593 A015914

Adjacent sequences:  A180948 A180949 A180950 * A180952 A180953 A180954

KEYWORD

nonn

AUTHOR

Carmine Suriano, Sep 27 2010

STATUS

approved

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Last modified December 6 04:20 EST 2021. Contains 349562 sequences. (Running on oeis4.)