Atlas › Modular forms › Weight 4 › Level 153 › 153.4.a › 153.4.a.b

Newform orbit 153.4.a.b

$q$ -expansion

$q + q^{2} - 7q^{4} - 16q^{5} + 34q^{7} - 15q^{8} - 16q^{10} + 48q^{11} + 58q^{13} + 34q^{14} + 41q^{16} + 17q^{17} + 20q^{19} + 112q^{20} + 48q^{22} - 58q^{23} + O(q^{25})$

Coefficient field

The coefficients $a_n$ generate $\mathbb{Q}$ . The eigenvalue of $T = T_{2} + T_{5}$ is a root of

$x + 15$

Atkin–Lehner signs

$p$	$w_p$
3	— ( $3^2 \mid 153$ )
17	$-1$

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
$\operatorname{tr} a_p$	1	0	−16	34	48	58	17	20	−58	0	−218	184	138	148	516	162	180	152	−956	538	−462	390	−1268	770	494

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

Sato–Tate

The normalized $a_p / 2p^{3/2}$ for the primes $p < 1000$ not dividing 153, against the semicircle $\tfrac{2}{\pi}\sqrt{1 - x^2}$ :

Provenance

Stored in the atlas: computed by Sagebrush's modular symbols engine in 0.124 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, 3, 9, 17, 51, 153]: [1, 2, 4, 6, 20, 56] (certified at ell = 2147483137)
T = [(2, 1), (5, 1)]; h of degree 20 = 1 x 20 (phi(ord eps) x dim S_k^new); 4 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(153, 4)[1]   # 153.4.a.b

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

cargo run --release -p sagebrush-web --example atlas -- 153:4 1000