A025199 - cp's OEIS frontend

A025199 a(n) = floor(floor(S2)/floor(S1)), where S2 and S1 are, respectively, the 2nd and first elementary symmetric functions of {sqrt(k), k = 1,2,...,n}.

n	a(n)
2	0
3	1
4	2
5	3
6	4
7	5
8	7
9	8
10	10
11	11
12	13
13	15
14	17
15	18
16	20
17	23
18	25
19	27
20	29
21	31
22	34
23	36
24	38
25	41
26	43
27	46
28	48
29	51
30	54
31	57
32	59
33	62
34	65
35	68
36	71
37	74
38	77
39	80
40	83
41	86
42	90
43	93
44	96
45	99
46	103
47	106
48	110
49	113
50	116
51	120
52	124
53	127
54	131
55	135
56	139
57	142
58	146
59	150

[0, 1, 2, 3, 4, 5, 7, 8, 10, 11, 13, 15, 17, 18, 20, 23, 25, 27, 29, 31, 34, 36, 38, 41, 43, 46, 48, 51, 54, 57, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 90, 93, 96, 99, 103, 106, 110, 113, 116, 120, 124, 127, 131, 135, 139, 142, 146, 150]

cp's OEIS Frontend

A025199 a(n) = floor(floor(S2)/floor(S1)), where S2 and S1 are, respectively, the 2nd and first elementary symmetric functions of {sqrt(k), k = 1,2,...,n}.

Table of values

List of values

n	a(n)
2	0
3	1
4	2
5	3
6	4
7	5
8	7
9	8
10	10
11	11
12	13
13	15
14	17
15	18
16	20
17	23
18	25
19	27
20	29
21	31
22	34
23	36
24	38
25	41
26	43
27	46
28	48
29	51
30	54
31	57
32	59
33	62
34	65
35	68
36	71
37	74
38	77
39	80
40	83
41	86
42	90
43	93
44	96
45	99
46	103
47	106
48	110
49	113
50	116
51	120
52	124
53	127
54	131
55	135
56	139
57	142
58	146
59	150

n	a(n)
2	0
3	1
4	2
5	3
6	4
7	5
8	7
9	8
10	10
11	11
12	13
13	15
14	17
15	18
16	20
17	23
18	25
19	27
20	29
21	31
22	34
23	36
24	38
25	41
26	43
27	46
28	48
29	51
30	54
31	57
32	59
33	62
34	65
35	68
36	71
37	74
38	77
39	80
40	83
41	86
42	90
43	93
44	96
45	99
46	103
47	106
48	110
49	113
50	116
51	120
52	124
53	127
54	131
55	135
56	139
57	142
58	146
59	150

n	a(n)
2	0
3	1
4	2
5	3
6	4
7	5
8	7
9	8
10	10
11	11
12	13
13	15
14	17
15	18
16	20
17	23
18	25
19	27
20	29
21	31
22	34
23	36
24	38
25	41
26	43
27	46
28	48
29	51
30	54
31	57
32	59
33	62
34	65
35	68
36	71
37	74
38	77
39	80
40	83
41	86
42	90
43	93
44	96
45	99
46	103
47	106
48	110
49	113
50	116
51	120
52	124
53	127
54	131
55	135
56	139
57	142
58	146
59	150