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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.

A113027 Magic products of 7 X 7 multiplicative magic squares.

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%I A113027 #5 Jan 31 2021 22:06:24
%S A113027 3632428800,4151347200,4410806400,4540536000,4670265600,4750099200,
%T A113027 4843238400,4929724800,5145940800,5189184000,5292967680,5308934400,
%U A113027 5428684800,5448643200,5613753600,5708102400,5751345600,5811886080,5837832000,5881075200,5915669760,5937624000,5967561600,6054048000,6067353600,6107270400,6175128960,6227020800,6274195200,6333465600
%N A113027 Magic products of 7 X 7 multiplicative magic squares.
%H A113027 Christian Boyer, <a href="http://www.multimagie.com/English/Multiplicative6_7.htm">Smallest multiplicative magic squares, 6th and 7th-order</a>.
%e A113027 Here is a 7 X 7 multiplicative magic square:
%e A113027   11 27  1 64 60 49 65
%e A113027   52 35 36 55  2 12 42
%e A113027   28 48 39 10 70 33  3
%e A113027   25 44 56  9 18 26 14
%e A113027    6  5 77 78 84  8 30
%e A113027   63  4 40 21 13 20 66
%e A113027   24 91 15  7 22 45 16
%e A113027 The magic product of each row, column or diagonal is 3632428800.
%Y A113027 Cf. A111029, A111030, A111031.
%K A113027 nonn
%O A113027 1,1
%A A113027 Christian Boyer (cboyer(AT)club-internet.fr), Jan 03 2006