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 A337262 #8 Sep 18 2020 20:19:10 %S A337262 2,5,15,48,169,618,2319,8804,33649,129046,495779,1906520,7335029, %T A337262 28227578,108642983,418176700,1609656953,6196050718,23850681323, %U A337262 91809753632,353409321213 %N A337262 A328078(2*n+1). %C A337262 Number of cells in odd generations of the Conant Gasket (or Conant Lattice). %C A337262 See A328078 for illustrations. %Y A337262 Cf. A328078, A328080. %K A337262 nonn,more %O A337262 0,1 %A A337262 _N. J. A. Sloane_, Aug 22 2020 %E A337262 a(5)-a(13) from _Rémy Sigrist_, Oct 14 2019 %E A337262 a(14)-a(21) from _Rémy Sigrist_, Sep 09 2020