OFFSET
3,1
COMMENTS
Equivalently, the n-th row gives the row indices corresponding to n in the triangle A351153.
EXAMPLE
Triangle begins:
2;
3;
4;
5, 3;
6;
7, 4;
8;
9, 5, 4;
...
MATHEMATICA
Table[r={}; For[d=1, d<Floor[(Sqrt[1+8n]-1)/2], d++, If[Divisible[2n+(d-2)(d+1), 2d], AppendTo[r, (2n+(d-2)(d+1))/(2d)]]]; r, {n, 3, 37}]//Flatten
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Stefano Spezia, Feb 06 2022
STATUS
approved