A049914 - cp's OEIS frontend

A049914 a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = n - 1 - 2^p 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) = 4.

n	a(n)
1	1
2	2
3	4
4	6
5	11
6	23
7	45
8	88
9	174
10	353
11	705
12	1408
13	2814
14	5623
15	11234
16	22446
17	44849
18	89785
19	179569
20	359136
21	718270
22	1436535
23	2873058
24	5746094
25	11492145
26	22984204
27	45968229
28	91936106
29	183871509
30	367741612
31	735480415
32	1470955219

[1, 2, 4, 6, 11, 23, 45, 88, 174, 353, 705, 1408, 2814, 5623, 11234, 22446, 44849, 89785, 179569, 359136, 718270, 1436535, 2873058, 5746094, 11492145, 22984204, 45968229, 91936106, 183871509, 367741612, 735480415, 1470955219]

cp's OEIS Frontend

A049914 a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = n - 1 - 2^p 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) = 4.

Table of values

List of values