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.
%I A095390 #6 Oct 15 2013 22:32:25 %S A095390 64,28,11,14,5,3,2,1,968 %N A095390 Least inverse of A095389. %C A095390 It is believed (or proved) that values at n > 8 indices do not occur, except once, at the beginning when 13 lesser twins in 210.0+R range, where R is the reduced residues modulo 210. %F A095390 a(n) = min{x: A095389(x) = n} %e A095390 a(13) = 0 because A095389(0) = 13. %e A095390 a(1) = 28 means that in reduced residue system 210.28+R exactly 1 lesser-twin-prime arises; see A095389. %e A095390 a(8) = 968 means that at surprisingly high density of twin primes [8 cases] occur in range of {210.968+r, 210.968+r+2}, as follows: {203309, 203321, 203339, 203351, 203381, 203417, 203429, 203459}. %t A095390 {k=0, ta=Table[0, {100000}]}; Do[{m=0};Do[s=210k+r; s1=210k+r+2; If[PrimeQ[s]&&PrimeQ[s+2], m=m+1], {r, 1, 210}];ta[[k]]=m, {k, 1, 100000}]; Table[Min[Flatten[Position[ta, j]]], {j, 0, 15}] %Y A095390 Cf. A095389, A078859. %K A095390 fini,nonn %O A095390 0,1 %A A095390 _Labos Elemer_, Jun 16 2004 %E A095390 Edited by _Charles R Greathouse IV_, Oct 27 2010