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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.

A269061 Magic sums of 3 X 3 semimagic squares composed of positive squares.

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%I A269061 #11 Jan 15 2025 16:41:40
%S A269061 3249,3969,5041,5691,6241,6561,7329,8281,8649,8841,9025,9801,10011,
%T A269061 10794,11025,11306,11449,11881,12219,12321,12769,12996,13689,13699,
%U A269061 13701,14114,14161,14641,15129,15876,16129,16186,16625,16641,17059,17081,17161,17689
%N A269061 Magic sums of 3 X 3 semimagic squares composed of positive squares.
%H A269061 <a href="/index/Mag#magic">Index entries for sequences related to magic squares</a>
%e A269061 A semimagic square with sum 3249:
%e A269061   |----|----|----|
%e A269061   | 16 | 529|2704|
%e A269061   |----|----|----|
%e A269061   |1024|1936| 289|
%e A269061   |----|----|----|
%e A269061   |2209| 784| 256|
%e A269061   |----|----|----|
%Y A269061 Subsequence of A265198 and A269062.
%Y A269061 Cf. A000290, A265141, A269060.
%K A269061 nonn
%O A269061 1,1
%A A269061 _Arkadiusz Wesolowski_, Feb 18 2016