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 A090784 #6 Apr 20 2021 14:53:09 %S A090784 72,120,168,312,408,552,600,768,792,912,1032,2472,3048,3192,3288,3528, %T A090784 3720,4008,5160,5208,5808,5928,6072,6480,6792,6840,7080,7152,7248, %U A090784 7512,7728,7800,8520,8760,9072,11400,11880,11928,12792,13200,13320,13440 %N A090784 Numbers that can be expressed as the difference of the squares of consecutive primes in just two distinct ways. %e A090784 72 = 19^2-17^2 = 11^2-7^2. %Y A090784 Cf. A078667, A090783, A090785, A091878. %K A090784 nonn %O A090784 1,1 %A A090784 _Ray G. Opao_, Feb 08 2004 %E A090784 More terms from _Ray Chandler_, Feb 11 2004