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 A121155 #15 Jan 27 2019 21:31:18 %S A121155 11,89,367,3727,5059,7927,38821,94261,160807,727621,908221,942847, %T A121155 1274671,1985287,2042059,2105407,2411821,4068301,4464781,4748077, %U A121155 5004193,5331511,5678713,5755219,7349527,8288647,9138541,9369727 %N A121155 Primes for which A117078(n) is equal to A117563(n) and A117563(n) is different from 0. %C A121155 A118534(n) = A117078(n) * A117563(n) = A117078(n)^2 = A117563(n)^2. %H A121155 Remi Eismann, <a href="/A121155/b121155.txt">Table of n, a(n) for n = 1..184</a> %e A121155 Prime(6) = prime (5) + mod(prime(5);3) = prime (5) + mod(prime(5);9), level(5)=9/3=3, A117078(5) = A117563(5) = 3. %e A121155 Prime(369935) = prime (369934) + mod(prime(369934); 2309) = prime (369934) + mod(prime(369934); 5331481), level(369934)=5331481/2309=2309, A117078(369934) = A117563(369934) = 2309. %Y A121155 Cf. A117078, A117563, A118534. %K A121155 nonn %O A121155 1,1 %A A121155 _Rémi Eismann_, Aug 13 2006; corrected Oct 11 2006, Sep 16 2008 %E A121155 More terms from _Fabien Sibenaler_, Oct 20 2006