A103431 - cp's OEIS frontend

A103431 Subsequence of the Gaussian primes, where only Gaussian primes a+bi with a>0, b>=0 are listed. Ordered by the norm N(a+bi)=a^2+b^2 and the size of the real part, when the norms are equal. a(n) is the real part of the Gaussian prime. Sequence A103432 gives the imaginary parts.

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

[1, 1, 2, 3, 2, 3, 1, 4, 2, 5, 1, 6, 4, 5, 7, 2, 7, 5, 6, 3, 8, 5, 8, 4, 9, 1, 10, 3, 10, 7, 8, 11, 4, 11, 7, 10, 6, 11, 2, 13, 9, 10, 7, 12, 1, 14, 2, 15, 8, 13, 4, 15, 1, 16, 10, 13, 9, 14, 5, 16, 2, 17, 12, 13, 11, 14, 9, 16, 5, 18, 8, 17, 19, 7, 18, 10, 17, 6, 19, 1, 20, 3, 20, 14, 15, 12, 17]

cp's OEIS Frontend

A103431 Subsequence of the Gaussian primes, where only Gaussian primes a+bi with a>0, b>=0 are listed. Ordered by the norm N(a+bi)=a^2+b^2 and the size of the real part, when the norms are equal. a(n) is the real part of the Gaussian prime. Sequence A103432 gives the imaginary parts.

Table of values

List of values

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

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

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