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 A085178 #17 Jan 16 2024 08:34:23 %S A085178 1,3,2,8,5,4,22,13,7,6,64,36,18,10,9,196,106,50,21,12,11,625,328,148, %T A085178 59,27,15,14,2055,1054,460,176,63,32,17,16,6917,3485,1483,550,190,78, %U A085178 35,20,19,23713,11779,4915,1780,598,195,92,41,24,23,82499,40509,16641,5916 %N A085178 Array A(x,y) giving the position of the y-th x in A080237 listed by rising antidiagonals. %C A085178 Read by upwards antidiagonals as A(1,1), A(2,1), A(1,2), A(3,1), A(2,2), A(1,3), etc. %H A085178 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a> %Y A085178 Transpose: A085176. %Y A085178 Inverse permutation: A085179. %Y A085178 The first row: A014138, the first column: A085223. %Y A085178 Variant: A085180. %K A085178 nonn,tabl %O A085178 1,2 %A A085178 _Antti Karttunen_, Jun 18 2003