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 A212430 #21 Feb 01 2017 11:42:25
%S A212430 384,840,8676,33300,34980,37044,39984,42024,50604,53760,55056,61680,
%T A212430 64380,71064,83520,88176,97644,103740,120204,129840,133896,148764,
%U A212430 154524,160416,168120,173064,184800,188880,199056,207984,234744,266640,292116,307044,356184
%N A212430 Numbers n such that n and n^4 are sums of two twin primes.
%C A212430 All terms are multiples of 12.
%H A212430 Harvey P. Dale, <a href="/A212430/b212430.txt">Table of n, a(n) for n = 1..1000</a>
%F A212430 n/2 +/-1 and (n^4)/2 +/- 1 are primes.
%e A212430 384=191+193, 384^3=147456=73727+73729.
%t A212430 Select[12 Range[30000],AllTrue[{#/2+1,#/2-1,#^4/2+1,#^4/2-1},PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* _Harvey P. Dale_, Feb 01 2017 *)
%o A212430 (PARI) isok(n) = !(n % 2) && isprime(n/2-1) && isprime(n/2+1) && isprime(n^4/2-1) && isprime(n^4/2+1); \\ _Michel Marcus_, Oct 19 2013
%Y A212430 Cf. A001043, A074924, A213784, A213789, A213811.
%K A212430 nonn
%O A212430 1,1
%A A212430 _Zak Seidov_, Jun 21 2012