A299714 - cp's OEIS frontend

A299714 Irregular triangle read by rows: row n contains numbers k such that 1<=k<=2n+1 and gcd(n-k, 2n+1) != 1.

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

[1, 2, 3, 1, 4, 7, 5, 6, 1, 2, 4, 7, 10, 12, 13, 8, 9, 1, 3, 4, 7, 10, 13, 16, 17, 19, 11, 2, 7, 12, 17, 22, 1, 4, 7, 10, 13, 16, 19, 22, 25, 14, 15, 1, 4, 5, 7, 10, 13, 16, 19, 22, 25, 27, 28, 31, 2, 3, 7, 10, 12, 17, 22, 24, 27, 31, 32, 18, 1, 4, 6, 7, 10, 13, 16, 19, 22, 25, 28, 31, 32, 34, 37, 20, 21, 1, 2, 4, 7, 10, 12, 13]

cp's OEIS Frontend

A299714 Irregular triangle read by rows: row n contains numbers k such that 1<=k<=2n+1 and gcd(n-k, 2n+1) != 1.

Table of values

List of values

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

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

cp's OEIS Frontend

A299714 Irregular triangle read by rows: row n contains numbers k such that 1<=k<=2*n+1 and gcd(n-k, 2*n+1) != 1.

Table of values

List of values

A299714 Irregular triangle read by rows: row n contains numbers k such that 1<=k<=2n+1 and gcd(n-k, 2n+1) != 1.

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