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 A226375 #11 Sep 05 2021 22:00:11 %S A226375 1,0,0,0,0,4,51,0,0,0,104,777,3845,52,45,1247,19600,96138,295711,8256, %T A226375 27485,341034,2741563,10253987,22931155,1312790,7243470,60002173, %U A226375 333466344,1013398942,1792951716,224282542,1374038796,8632780685,37298717355,95755127099 %N A226375 Number of tilings of an 11 X n rectangle using integer-sided square tiles of area > 1. %H A226375 Alois P. Heinz, <a href="/A226375/b226375.txt">Table of n, a(n) for n = 0..1000</a> %e A226375 a(5) = 4: %e A226375 ._._._._._. ._._._._._. ._._._._._. ._._._._._. %e A226375 | | | | | | | | | | %e A226375 | | | | |___| | | |___| %e A226375 | | | | | |_____| |_____| | %e A226375 | | | | |___| | | |___| %e A226375 |_________| |_________| | | | | | | %e A226375 | | | | | | |___|_____| |_____|___| %e A226375 |___| | | |___| | | | | %e A226375 | |_____| |_____| | | | | | %e A226375 |___| | | |___| | | | | %e A226375 | | | | | | | | | | %e A226375 |___|_____| |_____|___| |_________| |_________| %Y A226375 Column k=11 of A226206. %K A226375 nonn %O A226375 0,6 %A A226375 _Alois P. Heinz_, Jun 05 2013