A050051 - cp's OEIS frontend

A050051 a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) 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) = 3.

n	a(n)
1	1
2	2
3	3
4	5
5	10
6	12
7	17
8	29
9	58
10	60
11	65
12	77
13	106
14	166
15	243
16	409
17	818
18	820
19	825
20	837
21	866
22	926
23	1003
24	1169
25	1578
26	2398
27	3235
28	4161
29	5330
30	7728
31	11889
32	19617
33	39234
34	39236
35	39241
36	39253
37	39282
38	39342
39	39419
40	39585
41	39994
42	40814

[1, 2, 3, 5, 10, 12, 17, 29, 58, 60, 65, 77, 106, 166, 243, 409, 818, 820, 825, 837, 866, 926, 1003, 1169, 1578, 2398, 3235, 4161, 5330, 7728, 11889, 19617, 39234, 39236, 39241, 39253, 39282, 39342, 39419, 39585, 39994, 40814]

cp's OEIS Frontend

A050051 a(n) = a(n-1) + a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) 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) = 3.

Table of values

List of values