A294015 - cp's OEIS frontend

A294015 Sum of the even divisors of 2n, minus the (n-1)st odd number.

n	a(n)
1	1
2	3
3	3
4	7
5	3
6	13
7	3
8	15
9	9
10	17
11	3
12	33
13	3
14	21
15	19
16	31
17	3
18	43
19	3
20	45
21	23
22	29
23	3
24	73
25	13
26	33
27	27
28	57
29	3
30	85
31	3
32	63
33	31
34	41
35	27
36	111
37	3
38	45
39	35
40	101
41	3
42	109
43	3
44	81
45	67
46	53
47	3
48	153
49	17
50	87
51	43
52	93
53	3
54	133
55	35
56	129
57	47
58	65
59	3
60	217
61	3
62	69
63	83
64	127
65	39
66	157
67	3
68	117
69	55
70	149
71	3
72	247
73	3
74	81
75	99
76	129
77	39
78	181
79	3
80	213
81	81
82	89
83	3
84	281

[1, 3, 3, 7, 3, 13, 3, 15, 9, 17, 3, 33, 3, 21, 19, 31, 3, 43, 3, 45, 23, 29, 3, 73, 13, 33, 27, 57, 3, 85, 3, 63, 31, 41, 27, 111, 3, 45, 35, 101, 3, 109, 3, 81, 67, 53, 3, 153, 17, 87, 43, 93, 3, 133, 35, 129, 47, 65, 3, 217, 3, 69, 83, 127, 39, 157, 3, 117, 55, 149, 3, 247, 3, 81, 99, 129, 39, 181, 3, 213, 81, 89, 3, 281]

cp's OEIS Frontend

A294015 Sum of the even divisors of 2n, minus the (n-1)st odd number.

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	7
5	3
6	13
7	3
8	15
9	9
10	17
11	3
12	33
13	3
14	21
15	19
16	31
17	3
18	43
19	3
20	45
21	23
22	29
23	3
24	73
25	13
26	33
27	27
28	57
29	3
30	85
31	3
32	63
33	31
34	41
35	27
36	111
37	3
38	45
39	35
40	101
41	3
42	109
43	3
44	81
45	67
46	53
47	3
48	153
49	17
50	87
51	43
52	93
53	3
54	133
55	35
56	129
57	47
58	65
59	3
60	217
61	3
62	69
63	83
64	127
65	39
66	157
67	3
68	117
69	55
70	149
71	3
72	247
73	3
74	81
75	99
76	129
77	39
78	181
79	3
80	213
81	81
82	89
83	3
84	281

n	a(n)
1	1
2	3
3	3
4	7
5	3
6	13
7	3
8	15
9	9
10	17
11	3
12	33
13	3
14	21
15	19
16	31
17	3
18	43
19	3
20	45
21	23
22	29
23	3
24	73
25	13
26	33
27	27
28	57
29	3
30	85
31	3
32	63
33	31
34	41
35	27
36	111
37	3
38	45
39	35
40	101
41	3
42	109
43	3
44	81
45	67
46	53
47	3
48	153
49	17
50	87
51	43
52	93
53	3
54	133
55	35
56	129
57	47
58	65
59	3
60	217
61	3
62	69
63	83
64	127
65	39
66	157
67	3
68	117
69	55
70	149
71	3
72	247
73	3
74	81
75	99
76	129
77	39
78	181
79	3
80	213
81	81
82	89
83	3
84	281

n	a(n)
1	1
2	3
3	3
4	7
5	3
6	13
7	3
8	15
9	9
10	17
11	3
12	33
13	3
14	21
15	19
16	31
17	3
18	43
19	3
20	45
21	23
22	29
23	3
24	73
25	13
26	33
27	27
28	57
29	3
30	85
31	3
32	63
33	31
34	41
35	27
36	111
37	3
38	45
39	35
40	101
41	3
42	109
43	3
44	81
45	67
46	53
47	3
48	153
49	17
50	87
51	43
52	93
53	3
54	133
55	35
56	129
57	47
58	65
59	3
60	217
61	3
62	69
63	83
64	127
65	39
66	157
67	3
68	117
69	55
70	149
71	3
72	247
73	3
74	81
75	99
76	129
77	39
78	181
79	3
80	213
81	81
82	89
83	3
84	281