A099559 - cp's OEIS frontend

A099559 a(n) = Sum_{k=0..floor(n/5)} C(n-4k,k+1).

n	a(n)
0	0
1	1
2	2
3	3
4	4
5	5
6	7
7	10
8	14
9	19
10	25
11	33
12	44
13	59
14	79
15	105
16	139
17	184
18	244
19	324
20	430
21	570
22	755
23	1000
24	1325
25	1756
26	2327
27	3083
28	4084
29	5410
30	7167
31	9495
32	12579
33	16664
34	22075
35	29243
36	38739
37	51319
38	67984
39	90060
40	119304
41	158044
42	209364
43	277349
44	367410
45	486715

[0, 1, 2, 3, 4, 5, 7, 10, 14, 19, 25, 33, 44, 59, 79, 105, 139, 184, 244, 324, 430, 570, 755, 1000, 1325, 1756, 2327, 3083, 4084, 5410, 7167, 9495, 12579, 16664, 22075, 29243, 38739, 51319, 67984, 90060, 119304, 158044, 209364, 277349, 367410, 486715]

cp's OEIS Frontend

A099559 a(n) = Sum_{k=0..floor(n/5)} C(n-4k,k+1).

Table of values

List of values