A081493 - cp's OEIS frontend

A081493 Triangle T(n,k) read by rows in which the n-th row begins with T(n,1) = n and contains n terms of an arithmetic progression with a common difference of (n-1).

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	4
8	7
9	10
10	13
11	5
12	9
13	13
14	17
15	21
16	6
17	11
18	16
19	21
20	26
21	31
22	7
23	13
24	19
25	25
26	31
27	37
28	43
29	8
30	15
31	22
32	29
33	36
34	43
35	50
36	57
37	9
38	17
39	25
40	33
41	41
42	49
43	57
44	65
45	73
46	10
47	19
48	28
49	37
50	46
51	55
52	64
53	73
54	82
55	91
56	11
57	21
58	31
59	41
60	51
61	61
62	71
63	81
64	91
65	101
66	111
67	12
68	23
69	34
70	45
71	56
72	67
73	78
74	89
75	100
76	111
77	122
78	133

[1, 2, 3, 3, 5, 7, 4, 7, 10, 13, 5, 9, 13, 17, 21, 6, 11, 16, 21, 26, 31, 7, 13, 19, 25, 31, 37, 43, 8, 15, 22, 29, 36, 43, 50, 57, 9, 17, 25, 33, 41, 49, 57, 65, 73, 10, 19, 28, 37, 46, 55, 64, 73, 82, 91, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 12, 23, 34, 45, 56, 67, 78, 89, 100, 111, 122, 133]

cp's OEIS Frontend

A081493 Triangle T(n,k) read by rows in which the n-th row begins with T(n,1) = n and contains n terms of an arithmetic progression with a common difference of (n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	4
8	7
9	10
10	13
11	5
12	9
13	13
14	17
15	21
16	6
17	11
18	16
19	21
20	26
21	31
22	7
23	13
24	19
25	25
26	31
27	37
28	43
29	8
30	15
31	22
32	29
33	36
34	43
35	50
36	57
37	9
38	17
39	25
40	33
41	41
42	49
43	57
44	65
45	73
46	10
47	19
48	28
49	37
50	46
51	55
52	64
53	73
54	82
55	91
56	11
57	21
58	31
59	41
60	51
61	61
62	71
63	81
64	91
65	101
66	111
67	12
68	23
69	34
70	45
71	56
72	67
73	78
74	89
75	100
76	111
77	122
78	133

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	4
8	7
9	10
10	13
11	5
12	9
13	13
14	17
15	21
16	6
17	11
18	16
19	21
20	26
21	31
22	7
23	13
24	19
25	25
26	31
27	37
28	43
29	8
30	15
31	22
32	29
33	36
34	43
35	50
36	57
37	9
38	17
39	25
40	33
41	41
42	49
43	57
44	65
45	73
46	10
47	19
48	28
49	37
50	46
51	55
52	64
53	73
54	82
55	91
56	11
57	21
58	31
59	41
60	51
61	61
62	71
63	81
64	91
65	101
66	111
67	12
68	23
69	34
70	45
71	56
72	67
73	78
74	89
75	100
76	111
77	122
78	133

n	a(n)
1	1
2	2
3	3
4	3
5	5
6	7
7	4
8	7
9	10
10	13
11	5
12	9
13	13
14	17
15	21
16	6
17	11
18	16
19	21
20	26
21	31
22	7
23	13
24	19
25	25
26	31
27	37
28	43
29	8
30	15
31	22
32	29
33	36
34	43
35	50
36	57
37	9
38	17
39	25
40	33
41	41
42	49
43	57
44	65
45	73
46	10
47	19
48	28
49	37
50	46
51	55
52	64
53	73
54	82
55	91
56	11
57	21
58	31
59	41
60	51
61	61
62	71
63	81
64	91
65	101
66	111
67	12
68	23
69	34
70	45
71	56
72	67
73	78
74	89
75	100
76	111
77	122
78	133