A283681 - cp's OEIS frontend

A283681 Unique sequence with a(1)=1, a(2)=2, representing an array read by antidiagonals in which the i-th row is this sequence itself multiplied by i.

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

[1, 2, 2, 2, 4, 3, 2, 4, 6, 4, 4, 4, 6, 8, 5, 3, 8, 6, 8, 10, 6, 2, 6, 12, 8, 10, 12, 7, 4, 4, 9, 16, 10, 12, 14, 8, 6, 8, 6, 12, 20, 12, 14, 16, 9, 4, 12, 12, 8, 15, 24, 14, 16, 18, 10, 4, 8, 18, 16, 10, 18, 28, 16, 18, 20, 11, 4, 8, 12, 24, 20, 12, 21, 32, 18, 20, 22, 12, 6, 8]

cp's OEIS Frontend

A283681 Unique sequence with a(1)=1, a(2)=2, representing an array read by antidiagonals in which the i-th row is this sequence itself multiplied by i.

Table of values

List of values

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

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

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