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 A170898 #10 Sep 29 2013 11:33:52 %S A170898 1,1,3,1,3,5,7,1,3,5,9,9,7,13,15,1,3,5,9,9,9,17,25,17,7,13,23,27,19, %T A170898 31,31,1,3,5,9,9,9,17,25,17,9,17,29,37,33,41,57,33,7,13,23,27,27,43, %U A170898 67,59,27,31,55,69,49,69,63,1,3,5,9,9,9,17,25,17,9,17,29,37,33,41 %N A170898 Triangle read by rows, obtained by dividing A151724 by 6. %C A170898 Row k has 2^k terms. %C A170898 Right border gives the positive terms of A000225. - _Omar E. Pol_, Sep 28 2013 %H A170898 N. J. A. Sloane, <a href="/A170898/b170898.txt">Table of n, a(n) for n = 0..1023</a> %F A170898 Equals A170905(n) - 1. %e A170898 Triangle begins: %e A170898 1; %e A170898 1,3; %e A170898 1,3,5,7; %e A170898 1,3,5,9,9,7,13,15; %e A170898 1,3,5,9,9,9,17,25,17,7,13,23,27,19,31,31; %e A170898 1,3,5,9,9,9,17,25,17,9,17,29,37,33,41,57,33,7,13,23,27,27,43,67,59,27,31,55,69,49,69,63; %e A170898 ... %Y A170898 Cf. A169779 (partial sums). %Y A170898 Cf. A139250, A139251, A151723, A151724, A170899. %K A170898 nonn,tabf %O A170898 0,3 %A A170898 _N. J. A. Sloane_, Jan 10 2010