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 A095831 #12 Jan 27 2014 22:13:38 %S A095831 0,1,0,4,1,0,9,4,1,0,16,9,4,1,0,25,16,9,4,1,0,36,25,16,9,4,1,0,49,36, %T A095831 25,16,9,4,1,0,64,49,36,25,16,9,4,1,0,81,64,49,36,25,16,9,4,1,0,100, %U A095831 81,64,49,36,25,16,9,4,1,0,121,100,81,64,49,36,25,16,9,4,1,0,144,121,100,81 %N A095831 Triangle read by rows: T(n,k) = (n-k)^2, n>=1, 1<=k<=n. %C A095831 Alternating row sums give A000217. - _Omar E. Pol_, Jan 26 2014 %C A095831 Row sums give A000330. - _Omar E. Pol_, Jan 27 2014 %e A095831 From _Omar E. Pol_, Jan 27 2011: (Start) %e A095831 0; %e A095831 1, 0; %e A095831 4, 1, 0; %e A095831 9, 4, 1, 0; %e A095831 16, 9, 4, 1, 0; %e A095831 25, 16, 9, 4, 1, 0; %e A095831 36, 25, 16, 9, 4, 1, 0; %e A095831 49, 36, 25, 16, 9, 4, 1, 0; %e A095831 64, 49, 36, 25, 16, 9, 4, 1, 0; %e A095831 81, 64, 49, 36, 25, 16, 9, 4, 1, 0; %e A095831 100, 81, 64, 49, 36, 25, 16, 9, 4, 1, 0; %e A095831 ... %e A095831 For n = 8 the row sum is 49 + 36 + 25 + 16 + 9 + 4 + 1 + 0 = A000330(8-1) = 140. The alternating row sum is 49 - 36 + 25 - 16 + 9 - 4 + 1 - 0 = A000217(8-1) = 28. %e A095831 (End) %Y A095831 Cf. A055461. %K A095831 easy,nonn,tabl %O A095831 1,4 %A A095831 Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 10 2004