A089649 - cp's OEIS frontend

A089649 a(1)=1, a(2)=2, a(n) = a(n-1) + a(floor((n+1)/3)).

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	8
7	10
8	13
9	16
10	19
11	23
12	27
13	31
14	37
15	43
16	49
17	57
18	65
19	73
20	83
21	93
22	103
23	116
24	129
25	142
26	158
27	174
28	190
29	209
30	228
31	247
32	270
33	293
34	316
35	343
36	370
37	397
38	428
39	459
40	490
41	527
42	564
43	601
44	644
45	687
46	730
47	779
48	828
49	877
50	934
51	991
52	1048
53	1113
54	1178
55	1243
56	1316
57	1389

[1, 2, 3, 4, 6, 8, 10, 13, 16, 19, 23, 27, 31, 37, 43, 49, 57, 65, 73, 83, 93, 103, 116, 129, 142, 158, 174, 190, 209, 228, 247, 270, 293, 316, 343, 370, 397, 428, 459, 490, 527, 564, 601, 644, 687, 730, 779, 828, 877, 934, 991, 1048, 1113, 1178, 1243, 1316, 1389]

cp's OEIS Frontend

A089649 a(1)=1, a(2)=2, a(n) = a(n-1) + a(floor((n+1)/3)).

Table of values

List of values