A352996 - cp's OEIS frontend

A352996 a(n) = n*(n+1)/2 mod (sum (with multiplicity) of prime factors of n).

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

[1, 0, 2, 0, 1, 0, 0, 3, 6, 0, 1, 0, 6, 0, 0, 0, 3, 0, 3, 1, 6, 0, 3, 5, 6, 0, 10, 0, 5, 0, 8, 1, 6, 6, 6, 0, 6, 12, 6, 0, 3, 0, 0, 1, 6, 0, 10, 7, 3, 6, 1, 0, 0, 4, 10, 3, 6, 0, 6, 0, 6, 1, 4, 3, 3, 0, 15, 23, 7, 0, 0, 0, 6, 3, 5, 15, 3, 0, 3, 9, 6, 0, 0, 3, 6, 20, 6, 0, 0, 6, 12, 19, 6, 0, 2, 0]

cp's OEIS Frontend

A352996 a(n) = n*(n+1)/2 mod (sum (with multiplicity) of prime factors of n).

Table of values

List of values

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

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

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