A273751 - cp's OEIS frontend

A273751 Triangle of the natural numbers written by decreasing antidiagonals.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	6
8	8
9	10
10	13
11	9
12	11
13	14
14	17
15	21
16	12
17	15
18	18
19	22
20	26
21	31
22	16
23	19
24	23
25	27
26	32
27	37
28	43
29	20
30	24
31	28
32	33
33	38
34	44
35	50
36	57
37	25
38	29
39	34
40	39
41	45
42	51
43	58
44	65
45	73
46	30
47	35
48	40
49	46
50	52
51	59
52	66
53	74
54	82
55	91
56	36
57	41
58	47
59	53
60	60
61	67
62	75
63	83
64	92
65	101
66	111

[1, 2, 3, 4, 5, 7, 6, 8, 10, 13, 9, 11, 14, 17, 21, 12, 15, 18, 22, 26, 31, 16, 19, 23, 27, 32, 37, 43, 20, 24, 28, 33, 38, 44, 50, 57, 25, 29, 34, 39, 45, 51, 58, 65, 73, 30, 35, 40, 46, 52, 59, 66, 74, 82, 91, 36, 41, 47, 53, 60, 67, 75, 83, 92, 101, 111]

cp's OEIS Frontend

A273751 Triangle of the natural numbers written by decreasing antidiagonals.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	6
8	8
9	10
10	13
11	9
12	11
13	14
14	17
15	21
16	12
17	15
18	18
19	22
20	26
21	31
22	16
23	19
24	23
25	27
26	32
27	37
28	43
29	20
30	24
31	28
32	33
33	38
34	44
35	50
36	57
37	25
38	29
39	34
40	39
41	45
42	51
43	58
44	65
45	73
46	30
47	35
48	40
49	46
50	52
51	59
52	66
53	74
54	82
55	91
56	36
57	41
58	47
59	53
60	60
61	67
62	75
63	83
64	92
65	101
66	111

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	6
8	8
9	10
10	13
11	9
12	11
13	14
14	17
15	21
16	12
17	15
18	18
19	22
20	26
21	31
22	16
23	19
24	23
25	27
26	32
27	37
28	43
29	20
30	24
31	28
32	33
33	38
34	44
35	50
36	57
37	25
38	29
39	34
40	39
41	45
42	51
43	58
44	65
45	73
46	30
47	35
48	40
49	46
50	52
51	59
52	66
53	74
54	82
55	91
56	36
57	41
58	47
59	53
60	60
61	67
62	75
63	83
64	92
65	101
66	111

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	6
8	8
9	10
10	13
11	9
12	11
13	14
14	17
15	21
16	12
17	15
18	18
19	22
20	26
21	31
22	16
23	19
24	23
25	27
26	32
27	37
28	43
29	20
30	24
31	28
32	33
33	38
34	44
35	50
36	57
37	25
38	29
39	34
40	39
41	45
42	51
43	58
44	65
45	73
46	30
47	35
48	40
49	46
50	52
51	59
52	66
53	74
54	82
55	91
56	36
57	41
58	47
59	53
60	60
61	67
62	75
63	83
64	92
65	101
66	111