OFFSET
1,10
EXAMPLE
The triangle begins:
0;
0, 1;
0, 0, 0;
0, 0, 0, 2;
0, 0, 0, 0, 0;
0, 0, 2, 0, 0, 3;
and so on.
MATHEMATICA
T[n_, k_] := If[Divisible[n*k, n + k], n*k/(n + k), 0]; Table[T[n, k], {n, 1, 12}, {k, 1, n}] // Flatten (* Amiram Eldar, Jul 20 2022 *)
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Ctibor O. Zizka, Jul 19 2022
STATUS
approved