cp's OEIS Frontend

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.

A129861 Smallest square s such that A024352(n) + s is square.

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%I A129861 #3 Sep 24 2018 16:53:14
%S A129861 1,4,9,1,16,25,4,36,1,9,64,81,16,4,121,1,144,9,36,196,225,4,16,1,64,
%T A129861 324,25,9,400,441,100,4,529,1,576,49,144,676,9,25,64,841,4,900,1,36,
%U A129861 16,1089,256,100,1225,49,1296,25,324,4,1521,81,144,1681,16,36,169,81,1936,9,484
%N A129861 Smallest square s such that A024352(n) + s is square.
%F A129861 y(y+e) = A024352(n), where e is the smallest even number that satisfies this equation, A(n) = (e/2)^2.
%e A129861 5(5+6) = 55, smallest square = (6/2)^2 = 9
%e A129861 4(4+10) = 56, smallest square = (10/2)^2 = 25
%e A129861 3(3+16) = 57, smallest square = (16/2)^2 = 64
%e A129861 1(1+58) = 59, smallest square = (58/2)^2 = 841
%e A129861 6(6+4) = 60, smallest square = (4/2)^2 = 4
%e A129861 1(1+60) = 61, smallest square = (60/2)^2 = 900
%e A129861 7(7+2) = 63, smallest square = (2/2)^2 = 1
%e A129861 etc.
%Y A129861 Cf. A024352.
%K A129861 nonn
%O A129861 1,2
%A A129861 _Andrew S. Plewe_, May 23 2007