cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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).

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%I A178565 #3 Oct 28 2021 13:09:16
%S A178565 189111589,316283205,340596403,1363676123,2288631107,2548484492,
%T A178565 3761774969,5693215546,5806904514,5983441966,6153368797,6435606987,
%U A178565 6909440949,6955203039,7216006868,7582600736,7657322028,9403678002
%N 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).
%C A178565 n is always +/- 4 (mod 11).
%H A178565 Thomas R. Nicely, <a href="https://faculty.lynchburg.edu/~nicely/dense/dense1.html">Dense prime clusters</a>
%Y A178565 Cf. A145315
%K A178565 nonn
%O A178565 1,1
%A A178565 _Andrey V. Kulsha_, May 29 2010