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 A298222 #9 Jan 15 2018 09:40:05 %S A298222 1444,5776,6400,9604,10816,13924,14400,14884,22500,28900,36100,61504, %T A298222 62500,67600,88804,115600,136900,166464,211600,232324,291600,315844, %U A298222 425104,454276,577600,602176,715716,817216,937024,1016064,1020100,1290496,1397124,1507984 %N A298222 The first of three consecutive squares the sum of which is equal to the sum of three consecutive primes. %H A298222 Colin Barker, <a href="/A298222/b298222.txt">Table of n, a(n) for n = 1..100</a> %e A298222 1444 is in the sequence because 1444+1521+1600 (consecutive squares) = 4565 = 1511+1523+1531 (consecutive primes). %o A298222 (PARI) L=List(); forprime(p=2, 400000, q=nextprime(p+1); r=nextprime(q+1); t=p+q+r; if(issquare(12*t-24, &sq) && (sq-6)%6==0, u=(sq-6)\6; listput(L, u^2))); Vec(L) %Y A298222 Cf. A000040, A000290, A054643, A298073, A298168, A298169, A298223. %K A298222 nonn %O A298222 1,1 %A A298222 _Colin Barker_, Jan 15 2018