A120149 - cp's OEIS frontend

A120149 a(n) = 2 + floor((1 + Sum_{j=1..n-1} a(j))/3).

n	a(n)
1	2
2	3
3	4
4	5
5	7
6	9
7	12
8	16
9	21
10	28
11	38
12	50
13	67
14	89
15	119
16	159
17	212
18	282
19	376
20	502
21	669
22	892
23	1189
24	1586
25	2114
26	2819
27	3759
28	5012
29	6682
30	8910
31	11880
32	15840
33	21120
34	28160
35	37546
36	50062
37	66749
38	88999
39	118665
40	158220
41	210960
42	281280
43	375040
44	500053
45	666738

[2, 3, 4, 5, 7, 9, 12, 16, 21, 28, 38, 50, 67, 89, 119, 159, 212, 282, 376, 502, 669, 892, 1189, 1586, 2114, 2819, 3759, 5012, 6682, 8910, 11880, 15840, 21120, 28160, 37546, 50062, 66749, 88999, 118665, 158220, 210960, 281280, 375040, 500053, 666738]

cp's OEIS Frontend

A120149 a(n) = 2 + floor((1 + Sum_{j=1..n-1} a(j))/3).

Table of values

List of values