A238280 - cp's OEIS frontend

A238280 Irregular triangle read by rows, T(n,k) = Sum_{i = 1..n} k mod i, k = 1..m where m = lcm(1..n).

n	a(n)
1	0
2	1
3	0
4	2
5	2
6	1
7	1
8	3
9	0
10	3
11	4
12	4
13	1
14	4
15	2
16	5
17	2
18	2
19	3
20	6
21	0
22	4
23	6
24	7
25	5
26	4
27	3
28	7
29	5
30	6
31	3
32	7
33	2
34	6
35	8
36	4
37	2
38	6
39	5
40	9
41	2
42	3
43	5
44	9
45	4
46	3
47	5
48	6
49	4
50	8
51	2
52	6
53	4
54	5
55	7
56	6
57	1
58	5
59	7
60	8
61	1
62	5
63	4
64	8
65	6
66	2
67	4
68	8
69	3
70	7
71	4
72	5
73	3
74	7
75	6
76	5
77	3
78	4
79	6
80	10
81	0
82	5
83	8
84	10
85	9
86	9
87	3
88	8
89	7
90	9
91	7
92	12
93	2
94	7
95	10
96	7
97	6
98	11
99	5
100	10
101	4
102	6
103	9
104	14
105	4
106	4
107	7
108	9
109	8
110	13
111	2
112	7
113	6
114	8
115	11

[0, 1, 0, 2, 2, 1, 1, 3, 0, 3, 4, 4, 1, 4, 2, 5, 2, 2, 3, 6, 0, 4, 6, 7, 5, 4, 3, 7, 5, 6, 3, 7, 2, 6, 8, 4, 2, 6, 5, 9, 2, 3, 5, 9, 4, 3, 5, 6, 4, 8, 2, 6, 4, 5, 7, 6, 1, 5, 7, 8, 1, 5, 4, 8, 6, 2, 4, 8, 3, 7, 4, 5, 3, 7, 6, 5, 3, 4, 6, 10, 0, 5, 8, 10, 9, 9, 3, 8, 7, 9, 7, 12, 2, 7, 10, 7, 6, 11, 5, 10, 4, 6, 9, 14, 4, 4, 7, 9, 8, 13, 2, 7, 6, 8, 11]

cp's OEIS Frontend

A238280 Irregular triangle read by rows, T(n,k) = Sum_{i = 1..n} k mod i, k = 1..m where m = lcm(1..n).

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	2
5	2
6	1
7	1
8	3
9	0
10	3
11	4
12	4
13	1
14	4
15	2
16	5
17	2
18	2
19	3
20	6
21	0
22	4
23	6
24	7
25	5
26	4
27	3
28	7
29	5
30	6
31	3
32	7
33	2
34	6
35	8
36	4
37	2
38	6
39	5
40	9
41	2
42	3
43	5
44	9
45	4
46	3
47	5
48	6
49	4
50	8
51	2
52	6
53	4
54	5
55	7
56	6
57	1
58	5
59	7
60	8
61	1
62	5
63	4
64	8
65	6
66	2
67	4
68	8
69	3
70	7
71	4
72	5
73	3
74	7
75	6
76	5
77	3
78	4
79	6
80	10
81	0
82	5
83	8
84	10
85	9
86	9
87	3
88	8
89	7
90	9
91	7
92	12
93	2
94	7
95	10
96	7
97	6
98	11
99	5
100	10
101	4
102	6
103	9
104	14
105	4
106	4
107	7
108	9
109	8
110	13
111	2
112	7
113	6
114	8
115	11

n	a(n)
1	0
2	1
3	0
4	2
5	2
6	1
7	1
8	3
9	0
10	3
11	4
12	4
13	1
14	4
15	2
16	5
17	2
18	2
19	3
20	6
21	0
22	4
23	6
24	7
25	5
26	4
27	3
28	7
29	5
30	6
31	3
32	7
33	2
34	6
35	8
36	4
37	2
38	6
39	5
40	9
41	2
42	3
43	5
44	9
45	4
46	3
47	5
48	6
49	4
50	8
51	2
52	6
53	4
54	5
55	7
56	6
57	1
58	5
59	7
60	8
61	1
62	5
63	4
64	8
65	6
66	2
67	4
68	8
69	3
70	7
71	4
72	5
73	3
74	7
75	6
76	5
77	3
78	4
79	6
80	10
81	0
82	5
83	8
84	10
85	9
86	9
87	3
88	8
89	7
90	9
91	7
92	12
93	2
94	7
95	10
96	7
97	6
98	11
99	5
100	10
101	4
102	6
103	9
104	14
105	4
106	4
107	7
108	9
109	8
110	13
111	2
112	7
113	6
114	8
115	11

n	a(n)
1	0
2	1
3	0
4	2
5	2
6	1
7	1
8	3
9	0
10	3
11	4
12	4
13	1
14	4
15	2
16	5
17	2
18	2
19	3
20	6
21	0
22	4
23	6
24	7
25	5
26	4
27	3
28	7
29	5
30	6
31	3
32	7
33	2
34	6
35	8
36	4
37	2
38	6
39	5
40	9
41	2
42	3
43	5
44	9
45	4
46	3
47	5
48	6
49	4
50	8
51	2
52	6
53	4
54	5
55	7
56	6
57	1
58	5
59	7
60	8
61	1
62	5
63	4
64	8
65	6
66	2
67	4
68	8
69	3
70	7
71	4
72	5
73	3
74	7
75	6
76	5
77	3
78	4
79	6
80	10
81	0
82	5
83	8
84	10
85	9
86	9
87	3
88	8
89	7
90	9
91	7
92	12
93	2
94	7
95	10
96	7
97	6
98	11
99	5
100	10
101	4
102	6
103	9
104	14
105	4
106	4
107	7
108	9
109	8
110	13
111	2
112	7
113	6
114	8
115	11