Answer

In Jain tradition, the 24 Tirthankaras are mostly from the Ikshvaku clan. In the commonly used list, Munisuvrat Swami and Neminath are from the Harivansh clan. ( jainqq.org)

List of Gotras / Clans

• 1. Rishabhdev (Adinath) — Ikshvaku

2. Ajitnath — Ikshvaku 3. Sambhavnath — Ikshvaku 4. Abhinandanswami — Ikshvaku 5. Sumatinath — Ikshvaku 6. Padmaprabhu — Ikshvaku. ( jainqq.org)

• 7. Suparshvanath — Ikshvaku

8. Chandraprabhu — Ikshvaku 9. Suvidhinath (Pushpadant) — Ikshvaku 10. Sheetalnath — Ikshvaku 11. Shreyansnath — Ikshvaku 12. Vasupujya — Ikshvaku. ( jainqq.org)

• 13. Vimalnath — Ikshvaku

14. Anantnath — Ikshvaku 15. Dharmanath — Ikshvaku 16. Shantinath — Ikshvaku 17. Kunthunath — Ikshvaku 18. Arnath — Ikshvaku. ( jainqq.org)

• 19. Mallinath — Ikshvaku

20. Munisuvrat Swami — Harivansh 21. Naminath — Ikshvaku 22. Neminath (Arishtanemi) — Harivansh 23. Parshvanath — Ikshvaku 24. Mahavir Swami (Vardhaman) — Ikshvaku. ( jainqq.org)

Takeaway

So, the simple way to remember it is: 22 Tirthankaras are Ikshvaku, and 2 are Harivansh in this commonly accepted Jain listing. ( jainqq.org)