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 A085366 #13 Oct 14 2023 23:37:02 %S A085366 9,35,65,91,133,217,341,407,559,737,793,1027,1241,1339,1343,1843,1853, %T A085366 2071,2413,2771,2869,3197,3383,3439,3473,4097,4439,5129,5833,6119, %U A085366 6641,7471,7859,8027,8587,9773,10261,10649,10991,11377,12679,12913,14023 %N A085366 Semiprimes that are the sum of two positive cubes. Common terms of A003325 and A046315. %C A085366 Sum of two positive cubes x^3 + y^3 such that both x+y and x^2 - x*y + y^2 are primes. %C A085366 The only square is 9. Also, all terms have a unique representation as a sum of two distinct positive cubes. - _Zak Seidov_, Jun 02 2011 %H A085366 Zak Seidov, <a href="/A085366/b085366.txt">Table of n, a(n) for n = 1..1356</a> %e A085366 a(2) = 35 because 3^3 + 2^3 = 5*7. %e A085366 a(5) = 133 = 5^3 + 2^3 = (5+2)*(5^2 - 5*2 + 2^2) = 7*19. %Y A085366 Cf. A003325, A046388, A001358, A085367. %K A085366 nonn %O A085366 1,1 %A A085366 _Hugo Pfoertner_, Jun 25 2003