A344597 - cp's OEIS frontend

A344597 a(n) = Sum_{k=1..n} mu(k) * (floor(n/k)^4 - floor((n-1)/k)^4).

n	a(n)
1	1
2	14
3	64
4	160
5	368
6	592
7	1104
8	1520
9	2400
10	3056
11	4640
12	5264
13	7824
14	8736
15	11776
16	13216
17	17984
18	18384
19	25344
20	26080
21	33312
22	35120
23	45584
24	44320
25	58480
26	58512
27	72000
28	73200
29	92624
30	86848
31	113520
32	110144
33	132640
34	132416
35	162816
36	152112
37	194544
38	185616
39	220416

[1, 14, 64, 160, 368, 592, 1104, 1520, 2400, 3056, 4640, 5264, 7824, 8736, 11776, 13216, 17984, 18384, 25344, 26080, 33312, 35120, 45584, 44320, 58480, 58512, 72000, 73200, 92624, 86848, 113520, 110144, 132640, 132416, 162816, 152112, 194544, 185616, 220416]

cp's OEIS Frontend

A344597 a(n) = Sum_{k=1..n} mu(k) * (floor(n/k)^4 - floor((n-1)/k)^4).

Table of values

List of values