A330578 - cp's OEIS frontend

A330578 a(n) is the remainder when the sum of the first n composite numbers is divided by the n-th composite number.

n	a(n)
1	0
2	4
3	2
4	0
5	7
6	1
7	7
8	3
9	14
10	4
11	12
12	6
13	21
14	7
15	24
16	16
17	7
18	25
19	5
20	15
21	4
22	26
23	14
24	1
25	11
26	36
27	22
28	34
29	4
30	33
31	17
32	31
33	14
34	46
35	28
36	9
37	23
38	3
39	38
40	17
41	53
42	9
43	25
44	2
45	42
46	18
47	59
48	9
49	52
50	26
51	44
52	64
53	37
54	9
55	57
56	28
57	48
58	18
59	69
60	7
61	60
62	28
63	82
64	49
65	71
66	37
67	2
68	59
69	23
70	81
71	44

[0, 4, 2, 0, 7, 1, 7, 3, 14, 4, 12, 6, 21, 7, 24, 16, 7, 25, 5, 15, 4, 26, 14, 1, 11, 36, 22, 34, 4, 33, 17, 31, 14, 46, 28, 9, 23, 3, 38, 17, 53, 9, 25, 2, 42, 18, 59, 9, 52, 26, 44, 64, 37, 9, 57, 28, 48, 18, 69, 7, 60, 28, 82, 49, 71, 37, 2, 59, 23, 81, 44]

cp's OEIS Frontend

A330578 a(n) is the remainder when the sum of the first n composite numbers is divided by the n-th composite number.

Table of values

List of values

n	a(n)
1	0
2	4
3	2
4	0
5	7
6	1
7	7
8	3
9	14
10	4
11	12
12	6
13	21
14	7
15	24
16	16
17	7
18	25
19	5
20	15
21	4
22	26
23	14
24	1
25	11
26	36
27	22
28	34
29	4
30	33
31	17
32	31
33	14
34	46
35	28
36	9
37	23
38	3
39	38
40	17
41	53
42	9
43	25
44	2
45	42
46	18
47	59
48	9
49	52
50	26
51	44
52	64
53	37
54	9
55	57
56	28
57	48
58	18
59	69
60	7
61	60
62	28
63	82
64	49
65	71
66	37
67	2
68	59
69	23
70	81
71	44

n	a(n)
1	0
2	4
3	2
4	0
5	7
6	1
7	7
8	3
9	14
10	4
11	12
12	6
13	21
14	7
15	24
16	16
17	7
18	25
19	5
20	15
21	4
22	26
23	14
24	1
25	11
26	36
27	22
28	34
29	4
30	33
31	17
32	31
33	14
34	46
35	28
36	9
37	23
38	3
39	38
40	17
41	53
42	9
43	25
44	2
45	42
46	18
47	59
48	9
49	52
50	26
51	44
52	64
53	37
54	9
55	57
56	28
57	48
58	18
59	69
60	7
61	60
62	28
63	82
64	49
65	71
66	37
67	2
68	59
69	23
70	81
71	44

n	a(n)
1	0
2	4
3	2
4	0
5	7
6	1
7	7
8	3
9	14
10	4
11	12
12	6
13	21
14	7
15	24
16	16
17	7
18	25
19	5
20	15
21	4
22	26
23	14
24	1
25	11
26	36
27	22
28	34
29	4
30	33
31	17
32	31
33	14
34	46
35	28
36	9
37	23
38	3
39	38
40	17
41	53
42	9
43	25
44	2
45	42
46	18
47	59
48	9
49	52
50	26
51	44
52	64
53	37
54	9
55	57
56	28
57	48
58	18
59	69
60	7
61	60
62	28
63	82
64	49
65	71
66	37
67	2
68	59
69	23
70	81
71	44