Calculate Rows Visible

I can't seem to get Livecycle to resolve the row nodes.

Error:

TypeError: taskResolved is null

Each Row is named as follows:

Row1

Row2

...

Row23

(They are not dynamically named, hence I can't use resolveNodes)

The path is correct since the following works and shows the presence detail:

textbox1.rawValue = form1.sfMGR.sfCheckList.sfMainItems.Table10.Row22.presence;

(NOTE: The code is shorted to isolate the problematic code, the ultimate goal of the complete code is to count how many rows in the table are set to presence = "visible")

	for (var i = 1; i<23;i++) {
	var tasks = "form1.sfMGR.sfCheckList.sfMainItems.Table10.Row[" + i + "]";
	var taskResolved = xfa.resolveNode(tasks);
	this.rawValue = taskResolved.presence;
	}

What is wrong here?