1. Tar-Amandil
2. Tar-Elendil
3. Tar-Meneldur
4. Tar-Aldarion
5. Tar-Anárion
6. Tar-Súrton
7. Tar-Minastir
8. Tar-Ciryatan
9. Tar-Antanimar the Great
10. Tar-Ancalimon
11. Tar-Telemmaitë
12. Tar-Alcarin
13. Tar-Calmacil
14. Tar-Palantir – who changed his name from Ar-Inziladûn
I wasn’t sure if you were including Elros Tar-Minyatur in that group. If so, 15, if not 14. If I still didn’t get it, hint please as to what I’m missing.