A074135 - cp's OEIS frontend

A074135 Triangle read by rows: for 1 <= k < n, a(n, k) is the least positive integer not already used. a(n, n) is the least positive integer not already used that makes the row sum a multiple of n.

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

[1, 2, 4, 3, 5, 7, 6, 8, 9, 13, 10, 11, 12, 14, 18, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 40, 36, 37, 38, 39, 41, 42, 43, 44, 49, 45, 46, 47, 48, 50, 51, 52, 53, 54, 64, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 75, 66, 67, 68, 69, 70, 71]

cp's OEIS Frontend

A074135 Triangle read by rows: for 1 <= k < n, a(n, k) is the least positive integer not already used. a(n, n) is the least positive integer not already used that makes the row sum a multiple of n.

Table of values

List of values

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

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

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