A239395 - cp's OEIS frontend

A239395 Twice prime nonnegative Hurwitz quaternions shown as 4-vectors sorted by norm and then (1,i,j,k) components.

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

[2, 2, 0, 0, 2, 0, 2, 0, 2, 0, 0, 2, 0, 2, 2, 0, 0, 2, 0, 2, 0, 0, 2, 2, 3, 1, 1, 1, 2, 2, 2, 0, 2, 2, 0, 2, 2, 0, 2, 2, 1, 3, 1, 1, 1, 1, 3, 1, 1, 1, 1, 3, 0, 2, 2, 2, 4, 2, 0, 0, 4, 0, 2, 0, 4, 0, 0, 2, 3, 3, 1, 1, 3, 1, 3, 1, 3, 1, 1, 3, 2, 4, 0, 0, 2, 0, 4, 0]

cp's OEIS Frontend

A239395 Twice prime nonnegative Hurwitz quaternions shown as 4-vectors sorted by norm and then (1,i,j,k) components.

Table of values

List of values

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

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

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