A321348 - cp's OEIS frontend

A321348 a(n) = Sum_{d|n} tau(d^n), where tau() is the number of divisors (A000005).

n	a(n)
1	1
2	4
3	5
4	15
5	7
6	64
7	9
8	52
9	30
10	144
11	13
12	546
13	15
14	256
15	289
16	165
17	19
18	1140
19	21
20	1386
21	529
22	576
23	25
24	3848
25	78
26	784
27	166
28	2610
29	31
30	32768
31	33
32	486
33	1225
34	1296
35	1369
36	12321
37	39
38	1600
39	1681
40	10248
41	43
42	85184
43	45
44	6210
45	6486
46	2304
47	49
48	24250
49	150
50	7956

[1, 4, 5, 15, 7, 64, 9, 52, 30, 144, 13, 546, 15, 256, 289, 165, 19, 1140, 21, 1386, 529, 576, 25, 3848, 78, 784, 166, 2610, 31, 32768, 33, 486, 1225, 1296, 1369, 12321, 39, 1600, 1681, 10248, 43, 85184, 45, 6210, 6486, 2304, 49, 24250, 150, 7956]

cp's OEIS Frontend

A321348 a(n) = Sum_{d|n} tau(d^n), where tau() is the number of divisors (A000005).

Table of values

List of values