A005890 - cp's OEIS frontend

A005890 Theta series of hexagonal close-packing with respect to center of triangle between two layers.

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

[0, 0, 0, 3, 0, 0, 1, 0, 0, 3, 0, 1, 2, 0, 0, 4, 0, 2, 2, 2, 2, 2, 1, 2, 1, 1, 0, 4, 0, 0, 0, 2, 1, 6, 2, 4, 1, 2, 1, 2, 0, 5, 2, 3, 1, 6, 0, 4, 0, 4, 2, 2, 2, 4, 0, 2, 0, 5, 2, 2, 2, 4, 0, 2, 1, 4, 3, 5, 2, 2, 0, 2, 2, 9, 2, 6, 3, 6, 0, 4, 2, 2, 3, 8, 2, 2, 1]

cp's OEIS Frontend

A005890 Theta series of hexagonal close-packing with respect to center of triangle between two layers.

Table of values

List of values

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

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

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