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 A278841 #3 Nov 29 2016 07:10:13 %S A278841 1,1,6,65,1737,91359,8755730,1465091787,420070484342,194857695312573, %T A278841 142349343815684947,161388097061567486595,276760372468557882285737, %U A278841 707850058213409589011565269,2654427644322345709705054800083 %N A278841 a(n) = permanent M_n where M_n is the n X n matrix m(i,j) = A000009(i+j). %t A278841 Flatten[{1, Table[Permanent[Table[PartitionsQ[i+j], {i, 1, n}, {j, 1, n}]], {n, 1, 14}]}] %Y A278841 Cf. A000009, A005249, A204249, A278839, A278840. %K A278841 nonn %O A278841 0,3 %A A278841 _Vaclav Kotesovec_, Nov 29 2016