

A282935


Concatenation of the sums 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.


2



1, 1, 2, 3, 1, 3, 4, 1, 2, 4, 3, 5, 6, 7, 1, 5, 6, 1, 2, 3, 6, 3, 4, 7, 5, 8, 9, 6, 9, 10, 11, 12, 1, 7, 8, 1, 2, 4, 8, 3, 5, 9, 6, 10, 12, 7, 11, 13, 14, 15, 1, 3, 9, 4, 10, 12, 13, 1, 2, 5, 10, 3, 6, 11, 7, 12, 15, 8, 13, 16, 17, 18, 1, 11, 12, 1, 2, 3, 4, 6
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OFFSET

1,3


LINKS

Table of n, a(n) for n=1..80.


EXAMPLE

Rows with power sets of set of divisors of n (without nonempty sets):
{1};
{1}, {2}, {1, 2};
{1}, {3}, {1, 3};
{1}, {2}, {4}, {1, 2}, {1, 4}, {2, 4}, {1, 2, 4};
...
Rows with the sums of elements of these subsets:
1;
1, 2, 3;
1, 3, 4;
1, 2, 4, 3, 5, 6, 7;
...
Concatenation: 1, 1, 2, 3, 1, 3, 4, 1, 2, 4, 3, 5, 6, 7, ...


CROSSREFS

Cf. A282903, A282934, A282936.
Sequence in context: A240677 A030306 A119348 * A181974 A185312 A185311
Adjacent sequences: A282932 A282933 A282934 * A282936 A282937 A282938


KEYWORD

nonn


AUTHOR

Jaroslav Krizek, Feb 25 2017


STATUS

approved



