A050041 - cp's OEIS frontend

A050041 a(n) = a(n-1) + a(m) for n >= 4, where m = 2^(p+1) + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2, and a(3) = 1.

n	a(n)
1	1
2	2
3	1
4	3
5	4
6	7
7	8
8	10
9	11
10	21
11	29
12	36
13	40
14	43
15	44
16	46
17	47
18	93
19	137
20	180
21	220
22	256
23	285
24	306
25	317
26	327
27	335
28	342
29	346
30	349
31	350
32	352
33	353
34	705
35	1055
36	1404
37	1750
38	2092
39	2427
40	2754
41	3071
42	3377
43	3662
44	3918
45	4138
46	4318
47	4455
48	4548
49	4595

[1, 2, 1, 3, 4, 7, 8, 10, 11, 21, 29, 36, 40, 43, 44, 46, 47, 93, 137, 180, 220, 256, 285, 306, 317, 327, 335, 342, 346, 349, 350, 352, 353, 705, 1055, 1404, 1750, 2092, 2427, 2754, 3071, 3377, 3662, 3918, 4138, 4318, 4455, 4548, 4595]

cp's OEIS Frontend

A050041 a(n) = a(n-1) + a(m) for n >= 4, where m = 2^(p+1) + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2, and a(3) = 1.

Table of values

List of values