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 A282936 #4 Mar 03 2017 20:44:46 %S A282936 1,1,2,2,1,3,3,1,2,4,2,4,8,8,1,5,5,1,2,3,6,2,3,6,6,12,18,6,12,18,36, %T A282936 36,1,7,7,1,2,4,8,2,4,8,8,16,32,8,16,32,64,64,1,3,9,3,9,27,27,1,2,5, %U A282936 10,2,5,10,10,20,50,10,20,50,100,100,1,11,11,1,2,3 %N A282936 Concatenation of the products of elements of P{d_1}, P{d_2}, P{d_3}, ..., P{d_n}; where P{d_n} denote the power set of the set of divisors of n ordered by the size of the subsets, and in each subset, following the increasing order. %e A282936 Rows with power sets of set of divisors of n (without nonempty sets): %e A282936 {1}; %e A282936 {1}, {2}, {1, 2}; %e A282936 {1}, {3}, {1, 3}; %e A282936 {1}, {2}, {4}, {1, 2}, {1, 4}, {2, 4}, {1, 2, 4}; %e A282936 ... %e A282936 Rows with the products of elements of these subsets: %e A282936 1; %e A282936 1, 2, 2; %e A282936 1, 3, 3; %e A282936 1, 2, 4, 2, 4, 8, 8; %e A282936 ... %e A282936 Concatenation: 1, 1, 2, 2, 1, 3, 3, 1, 2, 4, 2, 4, 8, 8, ... %Y A282936 Cf. A282903, A282934, A282935. %K A282936 nonn %O A282936 1,3 %A A282936 _Jaroslav Krizek_, Feb 25 2017