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 A083283 #6 Nov 22 2020 18:17:36 %S A083283 5,26,42,45,84,2577,6837,18441,43190,65404,502536,2987594,5828519, %T A083283 41429808,431610158,1524989277,4301621811,5681026585,21585646103, %U A083283 26950130930,174893227975,334043333925,453875893331,633636954317,17921965531082,29347098990308 %N A083283 Engel expansion for i^i = exp(-Pi/2). %Y A083283 Cf. A049006, A049007. %K A083283 nonn %O A083283 1,1 %A A083283 Hauke Worpel (hw1(AT)email.com), Jun 03 2003 %E A083283 Offset and name corrected by _Alois P. Heinz_, Nov 22 2020