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 A084733 #9 Sep 19 2024 16:34:33 %S A084733 49,121,169,196,225,400,441,484,676,784,900,961,1089,1225,1521,1600, %T A084733 1764,1849,1936,2025,2401,2704,3025,3136,3249,3600,3844,3969,4225, %U A084733 4356,4900,5329,5625,5929,6084,6400,7056,7225,7396,7744,8100,8281,8649,9604 %N A084733 Squares which are the sum of at least three successive terms of a geometric progression. %C A084733 The partial sums of three or more successive terms of the sequence (2^n), 1,2,4,8,16,32,... is given by 7,14,15,28,30,31,...hence the square of the terms of this sequence are members. The same can be extended for any sequence of the form k^n. %e A084733 49 is a member as 49=7^2 = 7 + 14 + 28. %e A084733 400 is a member as 400 = 20^2 = 1 + 7 + 7^2 + 7^3. %Y A084733 Intersection of A000290 and A376298. %K A084733 nonn %O A084733 1,1 %A A084733 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Jun 14 2003 %E A084733 More terms from _David Wasserman_, Jan 03 2005 %E A084733 Offset changed by _Andrew Howroyd_, Sep 19 2024