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A054838 Fifth term of weak prime septet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1). 4
15401, 64951, 68227, 68917, 129001, 129011, 143537, 154111, 158029, 192407, 221737, 222437, 244493, 249763, 285343, 318701, 337301, 354391, 357883, 374219, 385417, 394747, 402601, 402613, 419623, 439199, 441953, 448421, 457421, 457697, 458219, 482527, 528001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

a(n) = A151800(A054837(n)) = A151799(A054839(n)), A151800 = nextprime, A151799 = prevprime; A054838 = { m = A054831(n) | m = nextprime(A054831(n-1)) }. - M. F. Hasler, Oct 27 2018

MATHEMATICA

Select[Partition[Prime[Range[7000]], 7, 1], Min[Differences[#, 2]]>0&][[All, 5]] (* Harvey P. Dale, Oct 15 2016 *)

CROSSREFS

Cf. A051635; A054800 .. A054803: members of balanced prime quartets (= consecutive primes in arithmetic progression); A054804 .. A054818: members of strong prime quartet, quintet, sextet; A054819 .. A054840: members of weak prime quartet, quintet, sextet, septets.

Sequence in context: A252842 A261724 A031637 * A255148 A054839 A190928

Adjacent sequences:  A054835 A054836 A054837 * A054839 A054840 A054841

KEYWORD

nonn

AUTHOR

Henry Bottomley, Apr 10 2000

EXTENSIONS

More terms from Harvey P. Dale, Oct 15 2016

STATUS

approved

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Last modified December 13 22:48 EST 2019. Contains 329974 sequences. (Running on oeis4.)