A089399 - cp's OEIS frontend

A089399 a(n) satisfies: 2^a(n)+1 = sum(k=1,n, A089398(k)*2^(k-1)) for n>2, with a(1)=a(2)=0.

n	a(n)
1	0
2	0
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	10
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	33
32	34
33	35
34	35
35	36
36	37
37	38
38	39
39	40
40	41
41	42
42	43
43	44
44	45
45	46
46	47
47	49
48	50
49	51
50	51
51	52
52	53
53	54
54	55
55	57
56	58
57	59
58	59
59	61
60	62
61	63
62	64
63	65
64	66
65	67
66	68
67	69
68	69
69	70
70	71
71	72
72	73

[0, 0, 3, 4, 5, 6, 8, 9, 10, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 51, 52, 53, 54, 55, 57, 58, 59, 59, 61, 62, 63, 64, 65, 66, 67, 68, 69, 69, 70, 71, 72, 73]

cp's OEIS Frontend

A089399 a(n) satisfies: 2^a(n)+1 = sum(k=1,n, A089398(k)*2^(k-1)) for n>2, with a(1)=a(2)=0.

Table of values

List of values

n	a(n)
1	0
2	0
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	10
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	33
32	34
33	35
34	35
35	36
36	37
37	38
38	39
39	40
40	41
41	42
42	43
43	44
44	45
45	46
46	47
47	49
48	50
49	51
50	51
51	52
52	53
53	54
54	55
55	57
56	58
57	59
58	59
59	61
60	62
61	63
62	64
63	65
64	66
65	67
66	68
67	69
68	69
69	70
70	71
71	72
72	73

n	a(n)
1	0
2	0
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	10
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	33
32	34
33	35
34	35
35	36
36	37
37	38
38	39
39	40
40	41
41	42
42	43
43	44
44	45
45	46
46	47
47	49
48	50
49	51
50	51
51	52
52	53
53	54
54	55
55	57
56	58
57	59
58	59
59	61
60	62
61	63
62	64
63	65
64	66
65	67
66	68
67	69
68	69
69	70
70	71
71	72
72	73

n	a(n)
1	0
2	0
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	10
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	26
26	27
27	28
28	29
29	30
30	31
31	33
32	34
33	35
34	35
35	36
36	37
37	38
38	39
39	40
40	41
41	42
42	43
43	44
44	45
45	46
46	47
47	49
48	50
49	51
50	51
51	52
52	53
53	54
54	55
55	57
56	58
57	59
58	59
59	61
60	62
61	63
62	64
63	65
64	66
65	67
66	68
67	69
68	69
69	70
70	71
71	72
72	73