A024169 - cp's OEIS frontend

A024169 Integer part of ((2nd elementary symmetric function of 1,2,...,n)/(1+2+...+n)).

n	a(n)
1	0
2	0
3	1
4	3
5	5
6	8
7	11
8	15
9	19
10	24
11	29
12	34
13	41
14	47
15	54
16	62
17	70
18	79
19	88
20	98
21	108
22	119
23	130
24	141
25	154
26	166
27	179
28	193
29	207
30	222
31	237
32	253
33	269
34	286
35	303
36	320
37	339
38	357
39	376
40	396
41	416
42	437
43	458
44	480
45	502

[0, 0, 1, 3, 5, 8, 11, 15, 19, 24, 29, 34, 41, 47, 54, 62, 70, 79, 88, 98, 108, 119, 130, 141, 154, 166, 179, 193, 207, 222, 237, 253, 269, 286, 303, 320, 339, 357, 376, 396, 416, 437, 458, 480, 502]

cp's OEIS Frontend

A024169 Integer part of ((2nd elementary symmetric function of 1,2,...,n)/(1+2+...+n)).

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	3
5	5
6	8
7	11
8	15
9	19
10	24
11	29
12	34
13	41
14	47
15	54
16	62
17	70
18	79
19	88
20	98
21	108
22	119
23	130
24	141
25	154
26	166
27	179
28	193
29	207
30	222
31	237
32	253
33	269
34	286
35	303
36	320
37	339
38	357
39	376
40	396
41	416
42	437
43	458
44	480
45	502

n	a(n)
1	0
2	0
3	1
4	3
5	5
6	8
7	11
8	15
9	19
10	24
11	29
12	34
13	41
14	47
15	54
16	62
17	70
18	79
19	88
20	98
21	108
22	119
23	130
24	141
25	154
26	166
27	179
28	193
29	207
30	222
31	237
32	253
33	269
34	286
35	303
36	320
37	339
38	357
39	376
40	396
41	416
42	437
43	458
44	480
45	502

n	a(n)
1	0
2	0
3	1
4	3
5	5
6	8
7	11
8	15
9	19
10	24
11	29
12	34
13	41
14	47
15	54
16	62
17	70
18	79
19	88
20	98
21	108
22	119
23	130
24	141
25	154
26	166
27	179
28	193
29	207
30	222
31	237
32	253
33	269
34	286
35	303
36	320
37	339
38	357
39	376
40	396
41	416
42	437
43	458
44	480
45	502