A284145 - cp's OEIS frontend

A284145 Triangle read by rows T(n,k) in which each term is the least positive integer not yet appearing in the triangle that is coprime to all the terms in its associated row, column, diagonal and antidiagonal.

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	4
7	9
8	11
9	13
10	17
11	19
12	8
13	21
14	23
15	25
16	29
17	31
18	37
19	16
20	27
21	41
22	43
23	47
24	53
25	35
26	59
27	61
28	67
29	49
30	71
31	73
32	33
33	79
34	83
35	85
36	89
37	97
38	101
39	95
40	103
41	14
42	107
43	109
44	113
45	121
46	127
47	131
48	137
49	139
50	143
51	115
52	149
53	151
54	157
55	133
56	163
57	65
58	167
59	173
60	179
61	6
62	181
63	187
64	191
65	193
66	197

[1, 2, 3, 5, 7, 4, 9, 11, 13, 17, 19, 8, 21, 23, 25, 29, 31, 37, 16, 27, 41, 43, 47, 53, 35, 59, 61, 67, 49, 71, 73, 33, 79, 83, 85, 89, 97, 101, 95, 103, 14, 107, 109, 113, 121, 127, 131, 137, 139, 143, 115, 149, 151, 157, 133, 163, 65, 167, 173, 179, 6, 181, 187, 191, 193, 197]

cp's OEIS Frontend

A284145 Triangle read by rows T(n,k) in which each term is the least positive integer not yet appearing in the triangle that is coprime to all the terms in its associated row, column, diagonal and antidiagonal.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	4
7	9
8	11
9	13
10	17
11	19
12	8
13	21
14	23
15	25
16	29
17	31
18	37
19	16
20	27
21	41
22	43
23	47
24	53
25	35
26	59
27	61
28	67
29	49
30	71
31	73
32	33
33	79
34	83
35	85
36	89
37	97
38	101
39	95
40	103
41	14
42	107
43	109
44	113
45	121
46	127
47	131
48	137
49	139
50	143
51	115
52	149
53	151
54	157
55	133
56	163
57	65
58	167
59	173
60	179
61	6
62	181
63	187
64	191
65	193
66	197

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	4
7	9
8	11
9	13
10	17
11	19
12	8
13	21
14	23
15	25
16	29
17	31
18	37
19	16
20	27
21	41
22	43
23	47
24	53
25	35
26	59
27	61
28	67
29	49
30	71
31	73
32	33
33	79
34	83
35	85
36	89
37	97
38	101
39	95
40	103
41	14
42	107
43	109
44	113
45	121
46	127
47	131
48	137
49	139
50	143
51	115
52	149
53	151
54	157
55	133
56	163
57	65
58	167
59	173
60	179
61	6
62	181
63	187
64	191
65	193
66	197

n	a(n)
1	1
2	2
3	3
4	5
5	7
6	4
7	9
8	11
9	13
10	17
11	19
12	8
13	21
14	23
15	25
16	29
17	31
18	37
19	16
20	27
21	41
22	43
23	47
24	53
25	35
26	59
27	61
28	67
29	49
30	71
31	73
32	33
33	79
34	83
35	85
36	89
37	97
38	101
39	95
40	103
41	14
42	107
43	109
44	113
45	121
46	127
47	131
48	137
49	139
50	143
51	115
52	149
53	151
54	157
55	133
56	163
57	65
58	167
59	173
60	179
61	6
62	181
63	187
64	191
65	193
66	197