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 A064744 #11 Feb 09 2023 22:11:22 %S A064744 0,1,2,1,1,1,0,2,0,1,2,3,1,0,1,1,0,0,1,1,0,2,1,1,0,0,1,1,0,0,0,1,0,1, %T A064744 0,1,3,4,1,0,2,1,0,0,0,1,1,0,0,0,0,1,0,0,1,0,3,0,1,1,1,2,0,0,1,1,0,0, %U A064744 1,0,0,2,1,0,0,0,0,1,1,0,0,0,0,0,1,0,0,0,1,0,2,2,5,1,0,0,0,0,0 %N A064744 A064413(n) written in base of primes, read from right to left, written as n-th row of a table. %H A064744 J. C. Lagarias, E. M. Rains and N. J. A. Sloane, <a href="http://arXiv.org/abs/math.NT/0204011">The EKG sequence</a>, Exper. Math. 11 (2002), 437-446. %H A064744 <a href="/index/Ed#EKG">Index entries for sequences related to EKG sequence</a> %e A064744 Triangle begins: %e A064744 0; %e A064744 1; %e A064744 2; %e A064744 1,1; %e A064744 1,0; %e A064744 2,0; %e A064744 1,2; %e A064744 3; %e A064744 ... %Y A064744 A064741(n) gives length of n-th row. See A064743 for another version. See A064301 for rightmost column. %K A064744 nonn,tabf %O A064744 1,3 %A A064744 _N. J. A. Sloane_, Oct 19 2001