A050068 - cp's OEIS frontend

A050068 a(n) = a(n-1) + a(m) for n >= 3, where m = 2*n - 3 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1 and a(2) = 3.

n	a(n)
1	1
2	3
3	4
4	5
5	9
6	10
7	14
8	23
9	37
10	38
11	42
12	51
13	65
14	102
15	144
16	209
17	353
18	354
19	358
20	367
21	381
22	418
23	460
24	525
25	669
26	1022
27	1380
28	1761
29	2221
30	2890
31	4270
32	6491
33	10761
34	10762
35	10766
36	10775
37	10789
38	10826
39	10868
40	10933
41	11077
42	11430
43	11788

[1, 3, 4, 5, 9, 10, 14, 23, 37, 38, 42, 51, 65, 102, 144, 209, 353, 354, 358, 367, 381, 418, 460, 525, 669, 1022, 1380, 1761, 2221, 2890, 4270, 6491, 10761, 10762, 10766, 10775, 10789, 10826, 10868, 10933, 11077, 11430, 11788]

cp's OEIS Frontend

A050068 a(n) = a(n-1) + a(m) for n >= 3, where m = 2*n - 3 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1 and a(2) = 3.

Table of values

List of values