A209518 - cp's OEIS frontend

A209518 Triangle by rows, reversal of A104712.

n	a(n)
0	1
1	1
2	3
3	1
4	4
5	6
6	1
7	5
8	10
9	10
10	1
11	6
12	15
13	20
14	15
15	1
16	7
17	21
18	35
19	35
20	21
21	1
22	8
23	28
24	56
25	70
26	56
27	28
28	1
29	9
30	36
31	84
32	126
33	126
34	84
35	36
36	1
37	10
38	45
39	120
40	210
41	252
42	210
43	120
44	45
45	1
46	11
47	55
48	165
49	330
50	462
51	462
52	330
53	165
54	55

[1, 1, 3, 1, 4, 6, 1, 5, 10, 10, 1, 6, 15, 20, 15, 1, 7, 21, 35, 35, 21, 1, 8, 28, 56, 70, 56, 28, 1, 9, 36, 84, 126, 126, 84, 36, 1, 10, 45, 120, 210, 252, 210, 120, 45, 1, 11, 55, 165, 330, 462, 462, 330, 165, 55]

cp's OEIS Frontend

A209518 Triangle by rows, reversal of A104712.

Table of values

List of values

n	a(n)
0	1
1	1
2	3
3	1
4	4
5	6
6	1
7	5
8	10
9	10
10	1
11	6
12	15
13	20
14	15
15	1
16	7
17	21
18	35
19	35
20	21
21	1
22	8
23	28
24	56
25	70
26	56
27	28
28	1
29	9
30	36
31	84
32	126
33	126
34	84
35	36
36	1
37	10
38	45
39	120
40	210
41	252
42	210
43	120
44	45
45	1
46	11
47	55
48	165
49	330
50	462
51	462
52	330
53	165
54	55

n	a(n)
0	1
1	1
2	3
3	1
4	4
5	6
6	1
7	5
8	10
9	10
10	1
11	6
12	15
13	20
14	15
15	1
16	7
17	21
18	35
19	35
20	21
21	1
22	8
23	28
24	56
25	70
26	56
27	28
28	1
29	9
30	36
31	84
32	126
33	126
34	84
35	36
36	1
37	10
38	45
39	120
40	210
41	252
42	210
43	120
44	45
45	1
46	11
47	55
48	165
49	330
50	462
51	462
52	330
53	165
54	55

n	a(n)
0	1
1	1
2	3
3	1
4	4
5	6
6	1
7	5
8	10
9	10
10	1
11	6
12	15
13	20
14	15
15	1
16	7
17	21
18	35
19	35
20	21
21	1
22	8
23	28
24	56
25	70
26	56
27	28
28	1
29	9
30	36
31	84
32	126
33	126
34	84
35	36
36	1
37	10
38	45
39	120
40	210
41	252
42	210
43	120
44	45
45	1
46	11
47	55
48	165
49	330
50	462
51	462
52	330
53	165
54	55