A003312 - cp's OEIS frontend

A003312 a(1) = 3; for n>0, a(n+1) = a(n) + floor((a(n)-1)/2).

n	a(n)
1	3
2	4
3	5
4	7
5	10
6	14
7	20
8	29
9	43
10	64
11	95
12	142
13	212
14	317
15	475
16	712
17	1067
18	1600
19	2399
20	3598
21	5396
22	8093
23	12139
24	18208
25	27311
26	40966
27	61448
28	92171
29	138256
30	207383
31	311074
32	466610
33	699914
34	1049870
35	1574804
36	2362205
37	3543307
38	5314960
39	7972439
40	11958658
41	17937986
42	26906978

[3, 4, 5, 7, 10, 14, 20, 29, 43, 64, 95, 142, 212, 317, 475, 712, 1067, 1600, 2399, 3598, 5396, 8093, 12139, 18208, 27311, 40966, 61448, 92171, 138256, 207383, 311074, 466610, 699914, 1049870, 1574804, 2362205, 3543307, 5314960, 7972439, 11958658, 17937986, 26906978]

cp's OEIS Frontend

A003312 a(1) = 3; for n>0, a(n+1) = a(n) + floor((a(n)-1)/2).

Table of values

List of values