# Save the attached generate.py beside this worksheet.
# Compute another admissible discriminant using exact Jacobi coefficients.
from generate import trace_coefficients
trace_coefficients(2, 1, bound=204)[204]
Computed by exact rational arithmetic in the complete weight-two, index-$N$ weak Jacobi-form basis, with the singular coefficients fixed by [1], Theorems 3.2 and 3.4. Exact elimination checks full column rank and consistency at every level. Lemma 4.2 then converts the fixed-residue coefficients to the starred traces. No exact value is inferred from rounded CM evaluations. The attached mathematical-method.md explains the basis, singular coefficients and uniqueness calculation.
An independent computation enumerates reduced binary quadratic forms, every projective level structure and its stabilizer orbit, then sums eta-quotient CM evaluations using Arb at 640 bits [4]. All 810 sums contain the corresponding exact rational, with finite component radii less than $5.381\times10^{-170}$. All 1392 fixed-residue sums also satisfy (2). Known CM values and deliberately wrong, wide and nonfinite balls test the checking method first. The attachment orbit-evidence.json preserves the congruence-subgroup representatives and their effective weights in the full starred trace.
Exact Euler-product expansions independently verify 424 Fourier-coefficient identities of [1], Theorem 1.1, and agree with all 360 overlapping published coefficients from the coefficient companion. The attached checker repeats the CM and identity comparisons on values read from the database.