A081998 - cp's OEIS frontend

A081998 Square array read by antidiagonals, alternating upwards and downwards: T(i, j) is the least number that is greater than the previous term and coprime to every number on the same row or column.

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	7
6	9
7	11
8	13
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	37
17	41
18	43
19	47
20	49
21	53
22	59
23	60
24	61
25	63
26	67
27	71
28	73
29	79
30	83
31	88
32	89
33	97
34	101
35	103
36	107
37	109
38	113
39	115
40	127
41	131
42	137
43	139
44	143
45	149
46	151
47	155
48	157
49	161
50	163
51	167
52	169
53	173
54	179
55	181
56	187
57	191
58	193
59	197
60	198
61	199

[1, 2, 3, 4, 5, 7, 9, 11, 13, 17, 19, 21, 23, 26, 29, 31, 37, 41, 43, 47, 49, 53, 59, 60, 61, 63, 67, 71, 73, 79, 83, 88, 89, 97, 101, 103, 107, 109, 113, 115, 127, 131, 137, 139, 143, 149, 151, 155, 157, 161, 163, 167, 169, 173, 179, 181, 187, 191, 193, 197, 198, 199]

cp's OEIS Frontend

A081998 Square array read by antidiagonals, alternating upwards and downwards: T(i, j) is the least number that is greater than the previous term and coprime to every number on the same row or column.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	7
6	9
7	11
8	13
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	37
17	41
18	43
19	47
20	49
21	53
22	59
23	60
24	61
25	63
26	67
27	71
28	73
29	79
30	83
31	88
32	89
33	97
34	101
35	103
36	107
37	109
38	113
39	115
40	127
41	131
42	137
43	139
44	143
45	149
46	151
47	155
48	157
49	161
50	163
51	167
52	169
53	173
54	179
55	181
56	187
57	191
58	193
59	197
60	198
61	199

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	7
6	9
7	11
8	13
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	37
17	41
18	43
19	47
20	49
21	53
22	59
23	60
24	61
25	63
26	67
27	71
28	73
29	79
30	83
31	88
32	89
33	97
34	101
35	103
36	107
37	109
38	113
39	115
40	127
41	131
42	137
43	139
44	143
45	149
46	151
47	155
48	157
49	161
50	163
51	167
52	169
53	173
54	179
55	181
56	187
57	191
58	193
59	197
60	198
61	199

n	a(n)
0	1
1	2
2	3
3	4
4	5
5	7
6	9
7	11
8	13
9	17
10	19
11	21
12	23
13	26
14	29
15	31
16	37
17	41
18	43
19	47
20	49
21	53
22	59
23	60
24	61
25	63
26	67
27	71
28	73
29	79
30	83
31	88
32	89
33	97
34	101
35	103
36	107
37	109
38	113
39	115
40	127
41	131
42	137
43	139
44	143
45	149
46	151
47	155
48	157
49	161
50	163
51	167
52	169
53	173
54	179
55	181
56	187
57	191
58	193
59	197
60	198
61	199