That entry is on Form 5329, just under line 48.

However, as I said before, that only needs to be there if there is a penalty for excess contributions.   If you have been required to enter that many other returns, I'm a bit concerned that you may be entering something incorrectly.  For example, if the W-2 has code "W" on Box 12 for HSA contributions, you DON'T enter the contribution AGAIN elsewhere.  You just check the boxes showing they had a High Deductible Health Plan, and then the requirement for the year-end value disappears.