Answer

If you mean Amam Swami, a commonly mentioned future Tirthankar, then a fixed lanchan is not usually listed in the standard Jain symbol tables. In Jain iconography, an idol without a symbol is sometimes taken to be a future Tirthankar. ( jainworld.com)

Explanation

Some Jain sources identify Shri Amam Ji with Shri Krishna as the jiva associated with that future Tirthankar. ( jainfoundation.in) So, by inference, Amam Swami is treated differently from the present 24 Tirthankars, whose emblems are clearly listed. ( jaingpt.org)

Spiritual Understanding

In Jain tradition, the lanchan is mainly used to पहचान/identify a Tirthankar’s idol. For future Tirthankars, that identifying symbol may not be fixed in the same way as for the present Tirthankars. ( jainworld.com)

Takeaway

So the safest answer is: Amam Swami does not have a commonly accepted standard lanchan in the usual Jain lists. ( jainworld.com)