A345140 - cp's OEIS frontend

A345140 a(1) = 1; a(n+1) = n + Sum_{d|n} a(d).

n	a(n)
1	1
2	2
3	5
4	9
5	16
6	22
7	36
8	44
9	64
10	79
11	108
12	120
13	171
14	185
15	238
16	275
17	347
18	365
19	477
20	497
21	624
22	687
23	820
24	844
25	1071
26	1113
27	1313
28	1410
29	1671
30	1701
31	2094
32	2126
33	2489
34	2636
35	3020
36	3108
37	3732
38	3770
39	4288
40	4504
41	5192
42	5234
43	6151
44	6195
45	7046
46	7415
47	8284
48	8332
49	9702
50	9788
51	11007
52	11411
53	12759
54	12813
55	14639

[1, 2, 5, 9, 16, 22, 36, 44, 64, 79, 108, 120, 171, 185, 238, 275, 347, 365, 477, 497, 624, 687, 820, 844, 1071, 1113, 1313, 1410, 1671, 1701, 2094, 2126, 2489, 2636, 3020, 3108, 3732, 3770, 4288, 4504, 5192, 5234, 6151, 6195, 7046, 7415, 8284, 8332, 9702, 9788, 11007, 11411, 12759, 12813, 14639]

cp's OEIS Frontend

A345140 a(1) = 1; a(n+1) = n + Sum_{d|n} a(d).

Table of values

List of values