Atlas › Modular forms › Weight 8 › Level 24 › 24.8.a › 24.8.a.a

Newform orbit 24.8.a.a

$q$ -expansion

$q - 27q^{3} - 26q^{5} + 1056q^{7} + 729q^{9} + 6412q^{11} + 5206q^{13} + 702q^{15} - 6238q^{17} + 41492q^{19} - 28512q^{21} - 29432q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{5} + T_{7}$ is a root of

$x - 1030$

Atkin–Lehner signs

$p$	$w_p$
2	— ( $2^2 \mid 24$ )
3	$+1$

For $p \parallel N$ every form in the orbit has $a_p = -p^{k/2-1} w_p$ .

Traces of Hecke eigenvalues

$p$	2	3	5	7	11	13	17	19	23	29	31	37	41	43	47	53	59	61	67	71	73	79	83	89	97
$\operatorname{tr} a_p$	0	−27	−26	1056	6412	5206	−6238	41492	−29432	−210498	185240	507630	360042	620044	−847680	1423750	−2548724	−706058	−2418796	265976	−5791238	2955688	3462932	−2211126	−15594814

$\operatorname{tr} a_n$ for every $n \le 1000$ is in the JSON.

Sato–Tate

The normalized $a_p / 2p^{7/2}$ for the primes $p < 1000$ not dividing 24, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.272 s (one thread) and proven: the dimensions are certified, and the characteristic polynomial of $T$ over $\mathbb{Z}$ is reconstructed by CRT past a rigorous coefficient bound.

The engine's checks

dim M^+ at levels [1, 2, 3, 4, 6, 8, 12, 24]: [1, 3, 3, 5, 9, 9, 17, 32] (certified at ell = 2147483647)
T = [(5, 1), (7, 1)]; h of degree 3 = 1 x 3 (phi(ord eps) x dim S_k^new); 2 primes, 0 rejected

Open in the notebook · JSON · stored data

Recompute it yourself

In Sage mode at sagebrush.space (or npx sagebrush --sage):

newform_orbits(24, 8)[0]   # 24.8.a.a

With the Rust engine (source), in engine/:

cargo run --release -p sagebrush-web --example atlas -- 24:8 1000