OFFSET
1,3
COMMENTS
Row n has length A326987(n) if n is not a power of 2, otherwise row n has length 1.
EXAMPLE
Triangle begins:
0;
0;
3;
0;
5;
3, 6;
7;
0;
3, 9;
5, 10;
11;
3, 6, 12;
13;
7, 14;
3, 5, 15;
0;
17;
3, 6, 9, 18;
...
For n = 18 the divisors of 18 are [1, 2, 3, 6, 9, 18]. There are four divisors of 18 that are not powers of 2, they are [3, 6, 9, 18], the same as the 18th row of triangle.
CROSSREFS
KEYWORD
nonn,tabf,easy
AUTHOR
Omar E. Pol, Aug 24 2019
STATUS
approved