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The classical modular form database currently contains information for all newforms fSknew(N,χ)f\in S_k^\mathrm{new}(N,\chi) of level N1N\ge 1, weight k1k\ge 1, character χ ⁣:(Z/NZ)×C\chi\colon (\Z/N\Z)^\times\to \C, for which any of the following hold:

In addition to the newspaces identified above, there are 131 newspaces that are present because they contain the minimal twist of a newform in one of the newspaces above.

For each newform with q-expansion f=anqnf=\sum a_nq^n the database contains the integers tr(an)\mathrm{tr}(a_n) for 1n10001\le n \le 1000, and when the level is at most 1000010\,000 and the dimension of ff is at most 2020, the algebraic integers ana_n for 1n10001\le n \le 1000 expressed in terms of an explicit basis for the coefficient ring Q(f)\Q(f). For 1000<N40001000 < N \le 4000 this data is available for all n2000n\le 2000, and for 4000<N100004000 < N\le 10\,000, for all n3000n\le 3000 (these values exceed both the Sturm bound and 30N30\sqrt{N} in every case). When the level is at most 1000010\,000 and the dimension of ff is at most 2020 Hecke characteristic polynomials for primes p100p\le 100 are also available.

For each newform ff of level N10000N\le 10\,000 and each embedding ρ ⁣:Q(f)C\rho\colon \Q(f)\to \C the complex numbers ρ(an)\rho(a_n) are available as floating point numbers with a precision of at least 5252 bits (separately, for both real and imaginary parts); this information is available for all newforms, regardless of their dimension, even when algebraic ana_n are not available (for the same ranges of nn as above).

Dimension tables are available for all newspaces Sknew(N,χ)S_k^\mathrm{new}(N,\chi) with Nk24000Nk^2 \le 4000, and also for those with k>1k>1 and Nk240000Nk^2\le 40\,000, and those with N10N\le 10 and Nk2100000Nk^2\le 100\,000. For newspaces in these ranges with N4000N\le 4000 we have also computed the first 10001000 coefficients of the trace form of the newspace.

Not every invariant of every newform has been computed (this is computationally infeasible). Below is completeness information for some specific invariants: