A062071 - cp's OEIS frontend

A062071 a(n) = [n/1] + [n/(2^2)] + [n/(3^3)] + [n/(4^4)] + ... + [n/(k^k)] + ..., up to infinity, where [ ] is the floor function.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	18
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	30
25	31
26	32
27	34
28	36
29	37
30	38
31	39
32	41
33	42
34	43
35	44
36	46
37	47
38	48
39	49
40	51
41	52
42	53
43	54
44	56
45	57
46	58
47	59
48	61
49	62
50	63
51	64
52	66
53	67
54	69
55	70
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	80
64	82
65	83
66	84
67	85
68	87
69	88
70	89
71	90

[1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 20, 21, 22, 23, 25, 26, 27, 28, 30, 31, 32, 34, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 49, 51, 52, 53, 54, 56, 57, 58, 59, 61, 62, 63, 64, 66, 67, 69, 70, 72, 73, 74, 75, 77, 78, 79, 80, 82, 83, 84, 85, 87, 88, 89, 90]

cp's OEIS Frontend

A062071 a(n) = [n/1] + [n/(2^2)] + [n/(3^3)] + [n/(4^4)] + ... + [n/(k^k)] + ..., up to infinity, where [ ] is the floor function.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	18
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	30
25	31
26	32
27	34
28	36
29	37
30	38
31	39
32	41
33	42
34	43
35	44
36	46
37	47
38	48
39	49
40	51
41	52
42	53
43	54
44	56
45	57
46	58
47	59
48	61
49	62
50	63
51	64
52	66
53	67
54	69
55	70
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	80
64	82
65	83
66	84
67	85
68	87
69	88
70	89
71	90

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	18
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	30
25	31
26	32
27	34
28	36
29	37
30	38
31	39
32	41
33	42
34	43
35	44
36	46
37	47
38	48
39	49
40	51
41	52
42	53
43	54
44	56
45	57
46	58
47	59
48	61
49	62
50	63
51	64
52	66
53	67
54	69
55	70
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	80
64	82
65	83
66	84
67	85
68	87
69	88
70	89
71	90

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	15
13	16
14	17
15	18
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	30
25	31
26	32
27	34
28	36
29	37
30	38
31	39
32	41
33	42
34	43
35	44
36	46
37	47
38	48
39	49
40	51
41	52
42	53
43	54
44	56
45	57
46	58
47	59
48	61
49	62
50	63
51	64
52	66
53	67
54	69
55	70
56	72
57	73
58	74
59	75
60	77
61	78
62	79
63	80
64	82
65	83
66	84
67	85
68	87
69	88
70	89
71	90