A227131 - cp's OEIS frontend

A227131 Sum of divisors of n that are not divisible by 25. a(0) = 1.

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	31
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	6
26	42
27	40
28	56
29	30
30	72
31	32
32	63
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	124
49	57
50	18
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	127
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	195
73	74
74	114
75	24
76	140

[1, 1, 3, 4, 7, 6, 12, 8, 15, 13, 18, 12, 28, 14, 24, 24, 31, 18, 39, 20, 42, 32, 36, 24, 60, 6, 42, 40, 56, 30, 72, 32, 63, 48, 54, 48, 91, 38, 60, 56, 90, 42, 96, 44, 84, 78, 72, 48, 124, 57, 18, 72, 98, 54, 120, 72, 120, 80, 90, 60, 168, 62, 96, 104, 127, 84, 144, 68, 126, 96, 144, 72, 195, 74, 114, 24, 140]

cp's OEIS Frontend

A227131 Sum of divisors of n that are not divisible by 25. a(0) = 1.

Table of values

List of values

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	31
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	6
26	42
27	40
28	56
29	30
30	72
31	32
32	63
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	124
49	57
50	18
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	127
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	195
73	74
74	114
75	24
76	140

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	31
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	6
26	42
27	40
28	56
29	30
30	72
31	32
32	63
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	124
49	57
50	18
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	127
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	195
73	74
74	114
75	24
76	140

n	a(n)
0	1
1	1
2	3
3	4
4	7
5	6
6	12
7	8
8	15
9	13
10	18
11	12
12	28
13	14
14	24
15	24
16	31
17	18
18	39
19	20
20	42
21	32
22	36
23	24
24	60
25	6
26	42
27	40
28	56
29	30
30	72
31	32
32	63
33	48
34	54
35	48
36	91
37	38
38	60
39	56
40	90
41	42
42	96
43	44
44	84
45	78
46	72
47	48
48	124
49	57
50	18
51	72
52	98
53	54
54	120
55	72
56	120
57	80
58	90
59	60
60	168
61	62
62	96
63	104
64	127
65	84
66	144
67	68
68	126
69	96
70	144
71	72
72	195
73	74
74	114
75	24
76	140