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 A051770 #4 Jun 29 2008 03:00:00 %S A051770 4,11,54,69,77,89,91,155,173,199,202,202,208,218,245,272,286,293,293, %T A051770 323,324,347,368,370,373,379,413,489,512,514,533,549,552,558,637,650, %U A051770 674,731,749,759,771,773,782,783,787,811,849,850,883,896,902,927,937 %N A051770 Numbers n such that there exists a binomial coefficient C(n,k) where C(n,k)-1 and C(n,k)+1 are twin primes and 2<=k<=floor(n/2). %C A051770 The integer 202 occurs twice because both C(202,34) and C(202,69) yield twin prime pairs. %H A051770 <a href="http://science.kennesaw.edu/~jdemaio/twinbc.htm">Source</a> %e A051770 The integer 11 is a member of the sequence because C(11,5)=462 and 461 and 463 are twin primes. %Y A051770 A051735, A051771. %K A051770 nonn %O A051770 1,1 %A A051770 Joe DeMaio (jdemaio(AT)kennesaw.edu), Dec 08 1999