A338888 - cp's OEIS frontend

A338888 a(n) = (a(n-2) bitwise-OR a(n-1)) + 1; a(1)=0, a(2)=0.

n	a(n)
1	0
2	0
3	1
4	2
5	4
6	7
7	8
8	16
9	25
10	26
11	28
12	31
13	32
14	64
15	97
16	98
17	100
18	103
19	104
20	112
21	121
22	122
23	124
24	127
25	128
26	256
27	385
28	386
29	388
30	391
31	392
32	400
33	409
34	410
35	412
36	415
37	416
38	448
39	481
40	482
41	484
42	487
43	488
44	496
45	505
46	506
47	508
48	511
49	512
50	1024
51	1537
52	1538
53	1540
54	1543
55	1544

[0, 0, 1, 2, 4, 7, 8, 16, 25, 26, 28, 31, 32, 64, 97, 98, 100, 103, 104, 112, 121, 122, 124, 127, 128, 256, 385, 386, 388, 391, 392, 400, 409, 410, 412, 415, 416, 448, 481, 482, 484, 487, 488, 496, 505, 506, 508, 511, 512, 1024, 1537, 1538, 1540, 1543, 1544]

cp's OEIS Frontend

A338888 a(n) = (a(n-2) bitwise-OR a(n-1)) + 1; a(1)=0, a(2)=0.

Table of values

List of values