A028930 - cp's OEIS frontend

A028930 Theta series of quadratic form (or lattice) with Gram matrix [ 4, 1; 1, 6 ].

n	a(n)
0	1
1	0
2	2
3	2
4	2
5	0
6	2
7	0
8	2
9	2
10	0
11	0
12	4
13	2
14	0
15	0
16	4
17	0
18	4
19	0
20	0
21	0
22	0
23	0
24	6
25	0
26	2
27	2
28	0
29	2
30	0
31	2
32	4
33	0
34	0
35	0
36	6
37	0
38	0
39	2
40	0
41	2
42	0
43	0
44	0
45	0
46	2
47	2
48	6
49	0
50	2
51	0
52	4
53	0
54	6
55	0
56	0
57	0
58	2
59	0
60	0
61	0
62	2
63	0
64	4
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	8
73	2
74	0
75	2
76	0
77	0
78	6
79	0
80	0
81	4
82	2
83	0
84	0
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	2
93	2
94	2
95	0
96	8
97	0
98	2
99	0
100	2
101	0
102	0
103	0
104	6

[1, 0, 2, 2, 2, 0, 2, 0, 2, 2, 0, 0, 4, 2, 0, 0, 4, 0, 4, 0, 0, 0, 0, 0, 6, 0, 2, 2, 0, 2, 0, 2, 4, 0, 0, 0, 6, 0, 0, 2, 0, 2, 0, 0, 0, 0, 2, 2, 6, 0, 2, 0, 4, 0, 6, 0, 0, 0, 2, 0, 0, 0, 2, 0, 4, 0, 0, 0, 0, 2, 0, 2, 8, 2, 0, 2, 0, 0, 6, 0, 0, 4, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 2, 2, 2, 0, 8, 0, 2, 0, 2, 0, 0, 0, 6]

cp's OEIS Frontend

A028930 Theta series of quadratic form (or lattice) with Gram matrix [ 4, 1; 1, 6 ].

Table of values

List of values

n	a(n)
0	1
1	0
2	2
3	2
4	2
5	0
6	2
7	0
8	2
9	2
10	0
11	0
12	4
13	2
14	0
15	0
16	4
17	0
18	4
19	0
20	0
21	0
22	0
23	0
24	6
25	0
26	2
27	2
28	0
29	2
30	0
31	2
32	4
33	0
34	0
35	0
36	6
37	0
38	0
39	2
40	0
41	2
42	0
43	0
44	0
45	0
46	2
47	2
48	6
49	0
50	2
51	0
52	4
53	0
54	6
55	0
56	0
57	0
58	2
59	0
60	0
61	0
62	2
63	0
64	4
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	8
73	2
74	0
75	2
76	0
77	0
78	6
79	0
80	0
81	4
82	2
83	0
84	0
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	2
93	2
94	2
95	0
96	8
97	0
98	2
99	0
100	2
101	0
102	0
103	0
104	6

n	a(n)
0	1
1	0
2	2
3	2
4	2
5	0
6	2
7	0
8	2
9	2
10	0
11	0
12	4
13	2
14	0
15	0
16	4
17	0
18	4
19	0
20	0
21	0
22	0
23	0
24	6
25	0
26	2
27	2
28	0
29	2
30	0
31	2
32	4
33	0
34	0
35	0
36	6
37	0
38	0
39	2
40	0
41	2
42	0
43	0
44	0
45	0
46	2
47	2
48	6
49	0
50	2
51	0
52	4
53	0
54	6
55	0
56	0
57	0
58	2
59	0
60	0
61	0
62	2
63	0
64	4
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	8
73	2
74	0
75	2
76	0
77	0
78	6
79	0
80	0
81	4
82	2
83	0
84	0
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	2
93	2
94	2
95	0
96	8
97	0
98	2
99	0
100	2
101	0
102	0
103	0
104	6

n	a(n)
0	1
1	0
2	2
3	2
4	2
5	0
6	2
7	0
8	2
9	2
10	0
11	0
12	4
13	2
14	0
15	0
16	4
17	0
18	4
19	0
20	0
21	0
22	0
23	0
24	6
25	0
26	2
27	2
28	0
29	2
30	0
31	2
32	4
33	0
34	0
35	0
36	6
37	0
38	0
39	2
40	0
41	2
42	0
43	0
44	0
45	0
46	2
47	2
48	6
49	0
50	2
51	0
52	4
53	0
54	6
55	0
56	0
57	0
58	2
59	0
60	0
61	0
62	2
63	0
64	4
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	8
73	2
74	0
75	2
76	0
77	0
78	6
79	0
80	0
81	4
82	2
83	0
84	0
85	0
86	0
87	2
88	0
89	0
90	0
91	0
92	2
93	2
94	2
95	0
96	8
97	0
98	2
99	0
100	2
101	0
102	0
103	0
104	6