A351571 - cp's OEIS frontend

A351571 Arithmetic derivative of the sum of the divisors of the largest unitary divisor of n that is an exponentially odd number.

n	a(n)
1	0
2	1
3	4
4	0
5	5
6	16
7	12
8	8
9	0
10	21
11	16
12	4
13	9
14	44
15	44
16	0
17	21
18	1
19	24
20	5
21	80
22	60
23	44
24	92
25	0
26	41
27	68
28	12
29	31
30	156
31	80
32	51
33	112
34	81
35	112
36	0
37	21
38	92
39	92
40	123
41	41
42	272
43	48
44	16
45	5
46	156
47	112
48	4
49	0
50	1
51	156
52	9
53	81
54	244
55	156
56	244
57	176
58	123
59	92
60	44
61	33
62	272
63	12
64	0
65	124
66	384
67	72
68	21
69	272
70	384
71	156
72	8
73	39
74	101
75	4
76	24
77	272
78	332
79	176
80	5

[0, 1, 4, 0, 5, 16, 12, 8, 0, 21, 16, 4, 9, 44, 44, 0, 21, 1, 24, 5, 80, 60, 44, 92, 0, 41, 68, 12, 31, 156, 80, 51, 112, 81, 112, 0, 21, 92, 92, 123, 41, 272, 48, 16, 5, 156, 112, 4, 0, 1, 156, 9, 81, 244, 156, 244, 176, 123, 92, 44, 33, 272, 12, 0, 124, 384, 72, 21, 272, 384, 156, 8, 39, 101, 4, 24, 272, 332, 176, 5]

cp's OEIS Frontend

A351571 Arithmetic derivative of the sum of the divisors of the largest unitary divisor of n that is an exponentially odd number.

Table of values

List of values

n	a(n)
1	0
2	1
3	4
4	0
5	5
6	16
7	12
8	8
9	0
10	21
11	16
12	4
13	9
14	44
15	44
16	0
17	21
18	1
19	24
20	5
21	80
22	60
23	44
24	92
25	0
26	41
27	68
28	12
29	31
30	156
31	80
32	51
33	112
34	81
35	112
36	0
37	21
38	92
39	92
40	123
41	41
42	272
43	48
44	16
45	5
46	156
47	112
48	4
49	0
50	1
51	156
52	9
53	81
54	244
55	156
56	244
57	176
58	123
59	92
60	44
61	33
62	272
63	12
64	0
65	124
66	384
67	72
68	21
69	272
70	384
71	156
72	8
73	39
74	101
75	4
76	24
77	272
78	332
79	176
80	5

n	a(n)
1	0
2	1
3	4
4	0
5	5
6	16
7	12
8	8
9	0
10	21
11	16
12	4
13	9
14	44
15	44
16	0
17	21
18	1
19	24
20	5
21	80
22	60
23	44
24	92
25	0
26	41
27	68
28	12
29	31
30	156
31	80
32	51
33	112
34	81
35	112
36	0
37	21
38	92
39	92
40	123
41	41
42	272
43	48
44	16
45	5
46	156
47	112
48	4
49	0
50	1
51	156
52	9
53	81
54	244
55	156
56	244
57	176
58	123
59	92
60	44
61	33
62	272
63	12
64	0
65	124
66	384
67	72
68	21
69	272
70	384
71	156
72	8
73	39
74	101
75	4
76	24
77	272
78	332
79	176
80	5

n	a(n)
1	0
2	1
3	4
4	0
5	5
6	16
7	12
8	8
9	0
10	21
11	16
12	4
13	9
14	44
15	44
16	0
17	21
18	1
19	24
20	5
21	80
22	60
23	44
24	92
25	0
26	41
27	68
28	12
29	31
30	156
31	80
32	51
33	112
34	81
35	112
36	0
37	21
38	92
39	92
40	123
41	41
42	272
43	48
44	16
45	5
46	156
47	112
48	4
49	0
50	1
51	156
52	9
53	81
54	244
55	156
56	244
57	176
58	123
59	92
60	44
61	33
62	272
63	12
64	0
65	124
66	384
67	72
68	21
69	272
70	384
71	156
72	8
73	39
74	101
75	4
76	24
77	272
78	332
79	176
80	5