A120154 - cp's OEIS frontend

A120154 a(n) = 9 + floor( Sum_{j=1..n-1} a(j)/3 ).

n	a(n)
1	9
2	12
3	16
4	21
5	28
6	37
7	50
8	66
9	88
10	118
11	157
12	209
13	279
14	372
15	496
16	661
17	882
18	1176
19	1568
20	2090
21	2787
22	3716
23	4955
24	6606
25	8808
26	11744
27	15659
28	20879
29	27838
30	37118
31	49490
32	65987
33	87983
34	117310
35	156414
36	208552
37	278069
38	370759
39	494345
40	659127

[9, 12, 16, 21, 28, 37, 50, 66, 88, 118, 157, 209, 279, 372, 496, 661, 882, 1176, 1568, 2090, 2787, 3716, 4955, 6606, 8808, 11744, 15659, 20879, 27838, 37118, 49490, 65987, 87983, 117310, 156414, 208552, 278069, 370759, 494345, 659127]

cp's OEIS Frontend

A120154 a(n) = 9 + floor( Sum_{j=1..n-1} a(j)/3 ).

Table of values

List of values