Sorry, I think this was quite tough...

ANSWER

Row 1:
   1
Sum = 1

Row 2:
  2   6  3
Sum = 11

Row 3:
  4 42 20 40 5
Sum = 111

Row 4:
  6 266 265 42 263 262 7
Sum = 1111

ANSWER

Row 5:

8  1840  1839  1838  72  1836

1835  1834  9

Sum = 11111

I think you would have guessed the first, middle and last elements. The remaining elements we get by subtracting them from 11111  and distributing the balance in the descending order leaving the middle number.

If you have any doubt please feel free to comment.

Am I right?

Do you agree?

Shall we continue?

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