A084840 - cp's OEIS frontend

A084840 Write the numbers 1, 2, ... in a triangle with n terms in the n-th row; a(n) = number of abundant integers in n-th row.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	2
7	1
8	2
9	2
10	2
11	3
12	3
13	4
14	4
15	4
16	2
17	4
18	4
19	4
20	7
21	5
22	4
23	6
24	5
25	7
26	6
27	8
28	7
29	6
30	9
31	7
32	8
33	9
34	8
35	9
36	9
37	8
38	10
39	10
40	10
41	10
42	10
43	12
44	11
45	9
46	12
47	11
48	11
49	14
50	10
51	14
52	14
53	13
54	14
55	13
56	13
57	14
58	16
59	15
60	13
61	16
62	15
63	17
64	17
65	15
66	18
67	14
68	17
69	16
70	19
71	18
72	19
73	15
74	20
75	19
76	18
77	20
78	20
79	18
80	20
81	21
82	22

[0, 0, 0, 0, 1, 2, 1, 2, 2, 2, 3, 3, 4, 4, 4, 2, 4, 4, 4, 7, 5, 4, 6, 5, 7, 6, 8, 7, 6, 9, 7, 8, 9, 8, 9, 9, 8, 10, 10, 10, 10, 10, 12, 11, 9, 12, 11, 11, 14, 10, 14, 14, 13, 14, 13, 13, 14, 16, 15, 13, 16, 15, 17, 17, 15, 18, 14, 17, 16, 19, 18, 19, 15, 20, 19, 18, 20, 20, 18, 20, 21, 22]

cp's OEIS Frontend

A084840 Write the numbers 1, 2, ... in a triangle with n terms in the n-th row; a(n) = number of abundant integers in n-th row.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	2
7	1
8	2
9	2
10	2
11	3
12	3
13	4
14	4
15	4
16	2
17	4
18	4
19	4
20	7
21	5
22	4
23	6
24	5
25	7
26	6
27	8
28	7
29	6
30	9
31	7
32	8
33	9
34	8
35	9
36	9
37	8
38	10
39	10
40	10
41	10
42	10
43	12
44	11
45	9
46	12
47	11
48	11
49	14
50	10
51	14
52	14
53	13
54	14
55	13
56	13
57	14
58	16
59	15
60	13
61	16
62	15
63	17
64	17
65	15
66	18
67	14
68	17
69	16
70	19
71	18
72	19
73	15
74	20
75	19
76	18
77	20
78	20
79	18
80	20
81	21
82	22

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	2
7	1
8	2
9	2
10	2
11	3
12	3
13	4
14	4
15	4
16	2
17	4
18	4
19	4
20	7
21	5
22	4
23	6
24	5
25	7
26	6
27	8
28	7
29	6
30	9
31	7
32	8
33	9
34	8
35	9
36	9
37	8
38	10
39	10
40	10
41	10
42	10
43	12
44	11
45	9
46	12
47	11
48	11
49	14
50	10
51	14
52	14
53	13
54	14
55	13
56	13
57	14
58	16
59	15
60	13
61	16
62	15
63	17
64	17
65	15
66	18
67	14
68	17
69	16
70	19
71	18
72	19
73	15
74	20
75	19
76	18
77	20
78	20
79	18
80	20
81	21
82	22

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	2
7	1
8	2
9	2
10	2
11	3
12	3
13	4
14	4
15	4
16	2
17	4
18	4
19	4
20	7
21	5
22	4
23	6
24	5
25	7
26	6
27	8
28	7
29	6
30	9
31	7
32	8
33	9
34	8
35	9
36	9
37	8
38	10
39	10
40	10
41	10
42	10
43	12
44	11
45	9
46	12
47	11
48	11
49	14
50	10
51	14
52	14
53	13
54	14
55	13
56	13
57	14
58	16
59	15
60	13
61	16
62	15
63	17
64	17
65	15
66	18
67	14
68	17
69	16
70	19
71	18
72	19
73	15
74	20
75	19
76	18
77	20
78	20
79	18
80	20
81	21
82	22