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 A014469 #9 Jul 02 2025 16:01:55 %S A014469 1,1,11,1,1,57,1,1191,1,15619,4293,247,1,1,1013,1,152637,1,10187685, %T A014469 478271,4083,1,423281535,1,12843262863,2571742175,16369,1, %U A014469 311387598411,15041229521,13824739,1,6382798925475,3207483178157,782115518299 %N A014469 Triangular array formed from odd elements to right of middle of rows of the triangle of Eulerian numbers (A008292). %D A014469 R. L. Graham, D. E. Knuth and O. Patashnik, Concrete Mathematics. Addison-Wesley, Reading, MA, 1990, p. 254. %K A014469 nonn,tabf,easy %O A014469 1,3 %A A014469 _Mohammad K. Azarian_ %E A014469 More terms from _James Sellers_