A073776 - cp's OEIS frontend

A073776 a(n) = Sum_{k=1..n} -mu(k+1) * a(n-k), with a(0)=1.

n	a(n)
0	1
1	1
2	2
3	3
4	6
5	9
6	17
7	28
8	50
9	83
10	147
11	249
12	435
13	742
14	1288
15	2207
16	3819
17	6561
18	11333
19	19497
20	33640
21	57915
22	99874
23	172020
24	296550
25	510886
26	880580
27	1517226
28	2614889
29	4505745
30	7765094
31	13380640
32	23059193
33	39735969
34	68476885
35	118001888

[1, 1, 2, 3, 6, 9, 17, 28, 50, 83, 147, 249, 435, 742, 1288, 2207, 3819, 6561, 11333, 19497, 33640, 57915, 99874, 172020, 296550, 510886, 880580, 1517226, 2614889, 4505745, 7765094, 13380640, 23059193, 39735969, 68476885, 118001888]

cp's OEIS Frontend

A073776 a(n) = Sum_{k=1..n} -mu(k+1) * a(n-k), with a(0)=1.

Table of values

List of values