A098572 - cp's OEIS frontend

A098572 a(n) = floor(Sum_{m=1..n} m^(1/m)).

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	16
14	18
15	19
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	31
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	42
36	43
37	44
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	53
46	54
47	55
48	56
49	57
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	67
59	68
60	69
61	70
62	71
63	72
64	73
65	74
66	75
67	76
68	77
69	78
70	79

[1, 2, 3, 5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79]

cp's OEIS Frontend

A098572 a(n) = floor(Sum_{m=1..n} m^(1/m)).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	16
14	18
15	19
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	31
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	42
36	43
37	44
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	53
46	54
47	55
48	56
49	57
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	67
59	68
60	69
61	70
62	71
63	72
64	73
65	74
66	75
67	76
68	77
69	78
70	79

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	16
14	18
15	19
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	31
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	42
36	43
37	44
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	53
46	54
47	55
48	56
49	57
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	67
59	68
60	69
61	70
62	71
63	72
64	73
65	74
66	75
67	76
68	77
69	78
70	79

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	15
13	16
14	18
15	19
16	20
17	21
18	22
19	23
20	25
21	26
22	27
23	28
24	29
25	30
26	31
27	33
28	34
29	35
30	36
31	37
32	38
33	39
34	40
35	42
36	43
37	44
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	53
46	54
47	55
48	56
49	57
50	58
51	59
52	60
53	61
54	62
55	63
56	64
57	65
58	67
59	68
60	69
61	70
62	71
63	72
64	73
65	74
66	75
67	76
68	77
69	78
70	79