A083532 - cp's OEIS frontend

A083532 First difference sequence of A007369. Differences between impossible values for sum of divisors of n.

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

[3, 4, 1, 1, 5, 1, 2, 2, 1, 1, 2, 1, 1, 2, 4, 1, 1, 2, 4, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 3, 1, 2, 3, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 3, 2, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 3, 1, 2, 4, 1, 1, 3, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 2, 1, 1, 2, 1, 2, 1]

cp's OEIS Frontend

A083532 First difference sequence of A007369. Differences between impossible values for sum of divisors of n.

Table of values

List of values

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

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

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