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 A261807 #16 Jun 10 2020 10:50:33
%S A261807 0,0,10,24,68,120,222,336,520,720,994,1336,1740,2200,2742,3360,4112,
%T A261807 4896,5850,6872,8020,9272,10638,12176,13848,15632,17586,19704,21980,
%U A261807 24408,26982,29760,32800,35904,39338,42840,46692,50680,54910,59280,64040,68880,74050,79544
%N A261807 a(n) = n XOR n^3.
%C A261807 XOR the binary representations of n and n^3.
%C A261807 n^3 + n >= a(n) >= n^3 - n. - _Robert Israel_, Sep 02 2015
%H A261807 Alois P. Heinz, <a href="/A261807/b261807.txt">Table of n, a(n) for n = 0..8192</a>
%p A261807 seq(Bits[Xor](n,n^3), n=0..100); # _Robert Israel_, Sep 02 2015
%t A261807 Table[BitXor[n, n^3], {n, 0, 43}] (* _Michael De Vlieger_, Sep 01 2015 *)
%o A261807 (Python)
%o A261807 for n in range(55): print(str(n ^ n*n*n), end=",")
%o A261807 (PARI) first(m)=vector(m,i,i--;bitxor(i,i^3)) \\ _Anders Hellström_, Sep 01 2015
%Y A261807 Cf. A169810.
%K A261807 nonn,base
%O A261807 0,3
%A A261807 _Alex Ratushnyak_, Sep 01 2015