A120424 - cp's OEIS frontend

A120424 Having specified two initial terms, the "Half-Fibonacci" sequence proceeds like the Fibonacci sequence, except that the terms are halved before being added if they are even.

n	a(n)
0	1
1	3
2	4
3	5
4	7
5	12
6	13
7	19
8	32
9	35
10	51
11	86
12	94
13	90
14	92
15	91
16	137
17	228
18	251
19	365
20	616
21	673
22	981
23	1654
24	1808
25	1731
26	2635
27	4366
28	4818
29	4592
30	4705
31	7001
32	11706
33	12854
34	12280
35	12567
36	18707
37	31274
38	34344
39	32809
40	49981
41	82790
42	91376
43	87083
44	132771
45	219854

[1, 3, 4, 5, 7, 12, 13, 19, 32, 35, 51, 86, 94, 90, 92, 91, 137, 228, 251, 365, 616, 673, 981, 1654, 1808, 1731, 2635, 4366, 4818, 4592, 4705, 7001, 11706, 12854, 12280, 12567, 18707, 31274, 34344, 32809, 49981, 82790, 91376, 87083, 132771, 219854]

cp's OEIS Frontend

A120424 Having specified two initial terms, the "Half-Fibonacci" sequence proceeds like the Fibonacci sequence, except that the terms are halved before being added if they are even.

Table of values

List of values