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 A133761 #6 Oct 19 2017 10:38:29 %S A133761 5,7,11,101,1481,3911,67421,67751,7592471,1922120561,3015551711, %T A133761 19694875121,4397554721831,29626637107421,55746215858141, %U A133761 3544413963914171 %N A133761 Primes such that the sum of any two terms, plus one, is a prime. %C A133761 Note sequence cannot start with 3. %e A133761 11 is a term in the sequence because 11+5+1 = 17 is a prime as is 11+7+1 = 19. %Y A133761 Cf. A037100. %K A133761 more,nonn %O A133761 1,1 %A A133761 _Randy L. Ekl_, Jan 01 2008 %E A133761 3 more terms from _Donovan Johnson_, Mar 06 2008 %E A133761 a(13)-a(16) from _Don Reble_, Feb 25 2015. - _N. J. A. Sloane_, Mar 01 2015