At the end of Naso, there is a difference in the Stone chumash's Targum Onkelos (edit: it's the same in the Dirshu chumash) between Nachshon and the other nesiim. For Nachshon, it says:
דין קֻרְבָּנָא דנחשון בר עמינדב
while for Netanel and the rest, it says:
דין קֻרבַּן נתנאל בר צוער
Bar Ilan Responsa and Mechon Mamre both have the same for all of them, which is a mix of those versions:
דין קרבנא דפלוני בר פלוני
Where does the Artscroll version come from? Why should there be a difference between Nachshon and the others?
This is what I originally had for Nachshon, I'm sure I saw this somewhere but can't find it now, the version in every Stone chumash I checked (large and small, editions ranging 1996-2006) is as above. As @DoubleAA points out in the comments to my answer, this is inconsistent with Artscroll's source for the Targum. Hidden to avoid confusion with the confirmed versions.
דא קָרְבָּנָא דנחשון בר עמינדב