when you do a Long Tail cast on, you cast on, and "knit" a row.
but for all practical purposes, this row is ROW 0 (zero)
you don't count it!
(there are other cast ons, like tubular ones, that have 2 or 4 rows of simple double knitting before settling into 1 X 1 (or more rarely, 2 X 2 ribbing)
the simple double knitting rows of the cast on (they make the tube!) are not counted either.. the first row of knitting is the first row of 1 X 1 ribbing--which is sometimes row 5(in actually count!)
Row 1 isn't always the first row of knitting, its the first row of the pattern!