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A178565
Numbers n for which the set {210*n-19, 210*n-17, 210*n-13, 210*n-11, 210*n-1, 210*n+1, 210*n+11, 210*n+13, 210*n+17, 210*n+19} forms a symmetrical prime decuplet (also known as Federighi cluster).
0
189111589, 316283205, 340596403, 1363676123, 2288631107, 2548484492, 3761774969, 5693215546, 5806904514, 5983441966, 6153368797, 6435606987, 6909440949, 6955203039, 7216006868, 7582600736, 7657322028, 9403678002
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
n is always +/- 4 (mod 11).
LINKS
Table of n, a(n) for n=1..18.
Thomas R. Nicely, Dense prime clusters
CROSSREFS
Cf. A145315
Sequence in context: A064593 A084304 A228377 * A195902 A181321 A267770
Adjacent sequences: A178562 A178563 A178564 * A178566 A178567 A178568
KEYWORD
nonn
AUTHOR
Andrey V. Kulsha, May 29 2010
STATUS
approved

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Last modified November 16 15:46 EST 2024. Contains 377797 sequences.
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