A292621 - cp's OEIS frontend

A292621 a(n) = a(n-1) + a(floor(log(n))) with a(1) = 1, a(2) = 2.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	11
10	13
11	15
12	17
13	19
14	21
15	23
16	25
17	27
18	29
19	31
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	57
29	60
30	63
31	66
32	69
33	72
34	75
35	78
36	81
37	84
38	87
39	90
40	93
41	96
42	99
43	102
44	105
45	108
46	111
47	114
48	117
49	120
50	123
51	126
52	129
53	132
54	135
55	139
56	143
57	147
58	151
59	155
60	159
61	163
62	167

[1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99, 102, 105, 108, 111, 114, 117, 120, 123, 126, 129, 132, 135, 139, 143, 147, 151, 155, 159, 163, 167]

cp's OEIS Frontend

A292621 a(n) = a(n-1) + a(floor(log(n))) with a(1) = 1, a(2) = 2.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	11
10	13
11	15
12	17
13	19
14	21
15	23
16	25
17	27
18	29
19	31
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	57
29	60
30	63
31	66
32	69
33	72
34	75
35	78
36	81
37	84
38	87
39	90
40	93
41	96
42	99
43	102
44	105
45	108
46	111
47	114
48	117
49	120
50	123
51	126
52	129
53	132
54	135
55	139
56	143
57	147
58	151
59	155
60	159
61	163
62	167

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	11
10	13
11	15
12	17
13	19
14	21
15	23
16	25
17	27
18	29
19	31
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	57
29	60
30	63
31	66
32	69
33	72
34	75
35	78
36	81
37	84
38	87
39	90
40	93
41	96
42	99
43	102
44	105
45	108
46	111
47	114
48	117
49	120
50	123
51	126
52	129
53	132
54	135
55	139
56	143
57	147
58	151
59	155
60	159
61	163
62	167

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	11
10	13
11	15
12	17
13	19
14	21
15	23
16	25
17	27
18	29
19	31
20	33
21	36
22	39
23	42
24	45
25	48
26	51
27	54
28	57
29	60
30	63
31	66
32	69
33	72
34	75
35	78
36	81
37	84
38	87
39	90
40	93
41	96
42	99
43	102
44	105
45	108
46	111
47	114
48	117
49	120
50	123
51	126
52	129
53	132
54	135
55	139
56	143
57	147
58	151
59	155
60	159
61	163
62	167