A280194 - cp's OEIS frontend

A280194 Expansion of 1/(1 - Sum_{k>=1} mu(k)^2*x^k), where mu(k) is the Moebius function (A008683).

n	a(n)
0	1
1	1
2	2
3	4
4	7
5	14
6	27
7	52
8	100
9	192
10	370
11	712
12	1370
13	2638
14	5077
15	9772
16	18809
17	36203
18	69682
19	134122
20	258154
21	496887
22	956393
23	1840836
24	3543185
25	6819813
26	13126568
27	25265616
28	48630484
29	93602468
30	180163165
31	346772545
32	667457180
33	1284701149
34	2472753448
35	4759480146
36	9160901700
37	17632623181
38	33938733369
39	65324235138
40	125734088242

[1, 1, 2, 4, 7, 14, 27, 52, 100, 192, 370, 712, 1370, 2638, 5077, 9772, 18809, 36203, 69682, 134122, 258154, 496887, 956393, 1840836, 3543185, 6819813, 13126568, 25265616, 48630484, 93602468, 180163165, 346772545, 667457180, 1284701149, 2472753448, 4759480146, 9160901700, 17632623181, 33938733369, 65324235138, 125734088242]

cp's OEIS Frontend

A280194 Expansion of 1/(1 - Sum_{k>=1} mu(k)^2*x^k), where mu(k) is the Moebius function (A008683).

Table of values

List of values