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 A361524 #12 Aug 29 2025 00:05:21 %S A361524 1,1,4,54,9235,10538496,66906507915,2262572656817797, %T A361524 406359897582963166777,387240433077951047222490766, %U A361524 1957233446631303872408683778546809,52459774417987065589052845904624173777442,7455958280198359250316552005822713102696893557376 %N A361524 Number of ways of dividing an n X n square into integer-sided rectangles, up to rotations and reflections. %H A361524 Nathan Jellis, <a href="/A361524/a361524.py.txt">Program to calculate up to a(12)</a> %F A361524 a(n) >= A182275(n)/8. %F A361524 a(n) ~ A182275(n)/8. %o A361524 (Python) # See Jellis link. %Y A361524 Main diagonal of A361523. %Y A361524 Cf. A182275 (rotations and reflections are considered distinct), A224239 (square pieces), A360630. %K A361524 nonn,changed %O A361524 0,3 %A A361524 _Pontus von Brömssen_, Mar 15 2023 %E A361524 a(6)-a(12) from _Nathan Jellis_, Aug 25 2025