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 A229500 #17 Oct 02 2013 13:17:14 %S A229500 7,9,23,47,79,81,167,359,839,1367,1847,2207,2399,3719,5039,6561,7919, %T A229500 10607,11447,14639,16127,17159,19319,28559,29927,36479,44519,49727, %U A229500 54287,57119,66047,85847,97967,113567,128879,177239,196247,201599,218087,241079,273527 %N A229500 Smaller of Fermi-Dirac twin primes (A229064) which are not the smaller of twin primes (A001359). %C A229500 The sequence conjecturally infinite. All squares of the sequence are 9, 81, 6561,... and have the form 3^(2^k), k>=1. However, we conjecture that there is only a finite number of them, or, the same, there is only a finite number of primes of the form 3^(2^k) + 2. %H A229500 Peter J. C. Moses, <a href="/A229500/b229500.txt">Table of n, a(n) for n = 1..1200</a> %Y A229500 Cf. A229064, A001359. %K A229500 nonn %O A229500 1,1 %A A229500 _Vladimir Shevelev_, Sep 25 2013 %E A229500 More terms from _Peter J. C. Moses_, Sep 25 2013