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 A029652 #15 Mar 02 2020 07:27:34 %S A029652 1,1,3,1,5,1,5,9,7,1,9,1,7,25,11,1,27,55,13,1,9,35,77,105,91,49,15,1, %T A029652 17,1,11,81,19,1,65,285,21,1,13,77,275,825,385,121,23,1,935,2079,25,1, %U A029652 15,1287,2717,4719,3289,169,27,1,119,1729,7007,9867,5005,819,29,1,17,135 %N A029652 Odd numbers in the (1,2)-Pascal triangle A029635. %K A029652 nonn %O A029652 1,3 %A A029652 _Mohammad K. Azarian_ %E A029652 More terms from _David W. Wilson_ %E A029652 Leading 1 removed as a consequence of change in A029635 by _Sean A. Irvine_, Mar 01 2020