Therefore, from line 1 to line n- 1, there are1+3+5+…+(2 (n-1)+1) = (1+2n-.

Therefore, the mth number of the nth row is the number of n 2-n+m, that is, n 2-n+m. 。

The number 2002 in the line 200 1 is: 20012-2001+2002 = 4004002.