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A084290 Difference between consecutive primes arising before difference (d=2) between twin primes. In A001223, terms before those ones which equal to two. 2
1, 2, 4, 4, 6, 4, 6, 4, 4, 4, 6, 10, 6, 10, 4, 4, 6, 6, 4, 4, 10, 10, 10, 4, 12, 6, 6, 4, 10, 6, 12, 10, 4, 4, 4, 6, 10, 10, 10, 4, 22, 6, 18, 6, 4, 12, 4, 4, 10, 4, 6, 6, 4, 4, 12, 4, 4, 4, 18, 16, 4, 10, 12, 4, 12, 16, 4, 16, 16, 12, 6, 4, 6, 12, 10, 4, 4, 10, 12, 4, 6, 28, 10, 4, 22, 4, 28, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
t = {}; s = 1; Do[s1 = Prime[n] - Prime[n - 1]; If[Equal[s1, 2], AppendTo[t, s]]; s = s1, {n, 2, 1000}]; t
CROSSREFS
Sequence in context: A326771 A049782 A091666 * A062011 A225520 A132857
KEYWORD
nonn
AUTHOR
Labos Elemer, May 26 2003
STATUS
approved

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Last modified March 29 11:45 EDT 2024. Contains 371278 sequences. (Running on oeis4.)