OFFSET
1,2
COMMENTS
FORMULA
T(n,k) = d(n)*k.
EXAMPLE
First few rows of the triangle =
1;
2, 4;
2, 4, 6;
3, 6, 9, 12;
2, 4, 6, 8, 10;
4, 8, 12, 16, 20, 24;
2, 4, 6, 8, 10, 12, 14;
...
T(5,3) = 6 = 2*3 = d(5)*3.
PROG
(PARI) tabl(nn) = for (n=1, nn, for (k=1, n, print1(numdiv(n)*k, ", "))); \\ Michel Marcus, Jun 05 2023
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Aug 03 2008
EXTENSIONS
a(62) corrected by Georg Fischer, Jun 05 2023
STATUS
approved