29*7^3 test: standard radix lift A_1421 + 1421*A_7 from the 28-point record at 1421=29*7^2 and A_7={0,1}. Gives 56 points. Local delete/refill tests around this lift did not improve it in the initial pass; recording as a baseline for the 29*7^k tower.
Yongxi (Aaron) Lin · 2026-08-08 15:11:59 UTC