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 A373360 #15 Aug 12 2025 14:46:03 %S A373360 2,2,2,2,2,1,1,2,2,2,1,1,2,1,1,2,1,1,2,2,2,1,1,2,1,1,2,1,1,2,1,1,2,1, %T A373360 1,2,1,1,1,1,1,1,2,2,2,1,1,2,1,1,2,1,1,2,1,1,2,1,1,2,1,1,1,1,1,1,2,1, %U A373360 1,2,1,1,2,1,1,1,1,1,1,2,1,1,1,1,1,1,2,1,1,1,1 %N A373360 First differences of A373347. %C A373360 This sequence contains only 1's and 2's. %H A373360 Paolo Xausa, <a href="/A373360/b373360.txt">Table of n, a(n) for n = 1..10000</a> %F A373360 a(n) = A373347(n+1) - A373347(n). %t A373360 Differences[Select[Range[200], DigitSum[#, 2] > IntegerExponent[#, 2] + 1 &]] %Y A373360 Cf. A373303, A373347. %K A373360 nonn %O A373360 1,1 %A A373360 _Paolo Xausa_, Jun 07 2024