A004020 - cp's OEIS frontend

A004020 Theta series of square lattice with respect to edge.

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

[2, 4, 2, 4, 4, 0, 6, 4, 0, 4, 4, 4, 2, 4, 0, 4, 8, 0, 4, 0, 2, 8, 4, 0, 4, 4, 0, 4, 4, 4, 2, 8, 0, 0, 4, 0, 8, 4, 4, 4, 0, 0, 6, 4, 0, 4, 8, 0, 4, 4, 0, 8, 0, 0, 0, 8, 6, 4, 4, 0, 4, 4, 0, 0, 4, 4, 8, 4, 0, 4, 4, 0, 6, 4, 0, 0, 8, 0, 4, 4, 0, 12, 0, 4, 4, 0, 0, 4, 4, 0, 2, 8, 4, 4, 8, 0, 0, 4, 0, 4, 4, 4, 4, 0]

cp's OEIS Frontend

A004020 Theta series of square lattice with respect to edge.

Table of values

List of values

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

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

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