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 A226902 #20 Jan 11 2016 20:58:35 %S A226902 5,8,18,40,53,70,102,114,188,197,213,248,255,297,306,453,460,477,487, %T A226902 491,495,564,632,671,684,768,909,958,989,1190,1290,1324,1331,1346, %U A226902 1744,1745,1779,2068,2130,2178,2208,2262,2448,2790,2813,3320,3327,3402,3414 %N A226902 Numbers c such that the difference of consecutive cubes (c+1)^3 - c^3 is the sum of two positive cubes. %C A226902 The numbers c in A225909. %C A226902 The sequence is infinite, because A226903 is a parametrized infinite subsequence. %H A226902 Chai Wah Wu, <a href="/A226902/b226902.txt">Table of n, a(n) for n = 1..5000</a> %F A226902 a(n) = (-3 + sqrt(9 + 12*(A225909(n) - 1)))/6 %e A226902 (5+1)^3 - 5^3 = 3^3 + 4^3, so 5 is a member. %Y A226902 Cf. A225909, A226903. %K A226902 nonn %O A226902 1,1 %A A226902 _Jonathan Sondow_, Jun 21 2013