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 A226552 #8 Sep 05 2021 22:01:23 %S A226552 0,9,600,9533,189172,3293575,56128696,929801662,15124830042, %T A226552 242394178200,3840094402532,60260456120659,938232581234924, %U A226552 14511287055938491,223171309100257664,3415393756038359269,52045507693324954598,790109733965301854764,11954668671384269574304 %N A226552 Number of squares in all tilings of a 9 X n rectangle using integer-sided square tiles. %H A226552 Alois P. Heinz, <a href="/A226552/b226552.txt">Table of n, a(n) for n = 0..500</a> %Y A226552 Column k=9 of A226545. %Y A226552 Cf. A219928. %K A226552 nonn %O A226552 0,2 %A A226552 _Alois P. Heinz_, Jun 10 2013