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A252728 Numbers k such that exactly 5 consecutive primes starting with prime(k) are congruent to the same value modulo 7. 1
70872, 191056, 204048, 215955, 216351, 251872, 266249, 346159, 431099, 433456, 443366, 461372, 517528, 654361, 664677, 793519, 841521, 865347, 904987, 918479, 1056902, 1060733, 1063487, 1134245, 1140824, 1158526 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Or, numbers k such A039705(k) = ... = A039705(k+4), but not A039705(k+5).

LINKS

Zak Seidov, Table of n, a(n) for n = 1..300

EXAMPLE

k=70872, {A000040(k), ..., A000040(k+4)} = {894287, 894301, 894329, 894343, 894371} == 2 (mod 7).

CROSSREFS

Cf. A000040, A039705.

Sequence in context: A236016 A204482 A186821 * A226530 A215994 A101250

Adjacent sequences:  A252725 A252726 A252727 * A252729 A252730 A252731

KEYWORD

nonn

AUTHOR

Zak Seidov, Feb 16 2015

STATUS

approved

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Last modified January 19 06:18 EST 2022. Contains 350464 sequences. (Running on oeis4.)