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 A192092 #20 Jan 01 2023 09:47:22 %S A192092 1,13,156,196,238,325,450,827,1404,2828,4603,7890,12475,20396,34708, %T A192092 57979,102658,170075,292948,482036,812571,1365010,2293755,3918292, %U A192092 6555468,11171195,18648162,31563547,53005132,89383740,151102715 %N A192092 Number of tatami tilings of a 6 X n grid (with monomers allowed). %C A192092 A tatami tiling consists of dimers (1 X 2) and monomers (1 X 1) where no four meet at a point. %H A192092 A. Erickson, F. Ruskey, M. Schurch and J. Woodcock, <a href="https://doi.org/10.37236/596">Monomer-Dimer Tatami Tilings of Rectangular Regions</a>, Electronic Journal of Combinatorics, 18(1) (2011) P109, 24 pages. %e A192092 Here are some tatami tilings of the 6 X 3 grid: %e A192092 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ %e A192092 |_ _| |_| |_| |_| |_|_ _| | | |_ _| |_| | |_| | |_ _| | %e A192092 |_ _|_| |_| | | |_|_ _| |_| |_| |_|_| |_| | |_|_| | |_| %e A192092 |_|_ _|_|_|_| |_|_ _|_|_|_| |_|_|_ _|_|_| |_|_ _|_|_|_| %Y A192092 Cf. A192091, A192093. %K A192092 nonn %O A192092 0,2 %A A192092 _Frank Ruskey_ and Yuji Yamauchi (eugene.uti(AT)gmail.com), Jul 14 2011