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 A374824 #18 Mar 07 2025 03:48:41 %S A374824 1,4,16,18,2309,2406862,166,4001278 %N A374824 Boolean-Boolean Quilt Numbers: Triangular array T(n,k) of the number of ASM quilts of type B_n X B_k, where B_n is the Boolean lattice of subsets of an n-set ordered by inclusion. %C A374824 For k=1, these numbers are the Dedekind numbers given in A007153. %H A374824 Sara Billey and Matjaž Konvalinka, <a href="https://arxiv.org/abs/2412.03236">Generalized rank functions and quilts of alternating sign matrices</a>, arXiv:2412.03236 [math.CO], 2024. See p. 34. %e A374824 Triangle begins: %e A374824 1; %e A374824 4, 16; %e A374824 18, 2309, 2406862; %e A374824 166, 4001278, ..., ...; %e A374824 ... %Y A374824 Cf. A007153, A374819, A374820, A374822, A374824. %Y A374824 Cf. A297622. %K A374824 nonn,tabl,more %O A374824 1,2 %A A374824 _Sara Billey_ and _Matjaz Konvalinka_, Jul 21 2024