Could it be Turkish stitch?
Down at the bottom of the page...I'm guessing the purl stitches on either end are more for a selvedge effect rather than part of the pattern.
row 1 - knit across, purl last stitch
row 2 - slip 1, *yo, k2tog*, repeat from *, purl 1
repeat row 2 till the end, then one row 1, bind off.