A162315 - cp's OEIS frontend

A162315 Triangular array 2*P - P^-1, where P is Pascal's triangle A007318.

n	a(n)
0	1
1	3
2	1
3	1
4	6
5	1
6	3
7	3
8	9
9	1
10	1
11	12
12	6
13	12
14	1
15	3
16	5
17	30
18	10
19	15
20	1
21	1
22	18
23	15
24	60
25	15
26	18
27	1
28	3
29	7
30	63
31	35
32	105
33	21
34	21
35	1
36	1
37	24
38	28
39	168
40	70
41	168
42	28
43	24
44	1
45	3
46	9
47	108
48	84
49	378
50	126
51	252
52	36
53	27
54	1
55	1
56	30
57	45
58	360
59	210
60	756
61	210
62	360
63	45
64	30
65	1

[1, 3, 1, 1, 6, 1, 3, 3, 9, 1, 1, 12, 6, 12, 1, 3, 5, 30, 10, 15, 1, 1, 18, 15, 60, 15, 18, 1, 3, 7, 63, 35, 105, 21, 21, 1, 1, 24, 28, 168, 70, 168, 28, 24, 1, 3, 9, 108, 84, 378, 126, 252, 36, 27, 1, 1, 30, 45, 360, 210, 756, 210, 360, 45, 30, 1]

cp's OEIS Frontend

A162315 Triangular array 2*P - P^-1, where P is Pascal's triangle A007318.

Table of values

List of values

n	a(n)
0	1
1	3
2	1
3	1
4	6
5	1
6	3
7	3
8	9
9	1
10	1
11	12
12	6
13	12
14	1
15	3
16	5
17	30
18	10
19	15
20	1
21	1
22	18
23	15
24	60
25	15
26	18
27	1
28	3
29	7
30	63
31	35
32	105
33	21
34	21
35	1
36	1
37	24
38	28
39	168
40	70
41	168
42	28
43	24
44	1
45	3
46	9
47	108
48	84
49	378
50	126
51	252
52	36
53	27
54	1
55	1
56	30
57	45
58	360
59	210
60	756
61	210
62	360
63	45
64	30
65	1

n	a(n)
0	1
1	3
2	1
3	1
4	6
5	1
6	3
7	3
8	9
9	1
10	1
11	12
12	6
13	12
14	1
15	3
16	5
17	30
18	10
19	15
20	1
21	1
22	18
23	15
24	60
25	15
26	18
27	1
28	3
29	7
30	63
31	35
32	105
33	21
34	21
35	1
36	1
37	24
38	28
39	168
40	70
41	168
42	28
43	24
44	1
45	3
46	9
47	108
48	84
49	378
50	126
51	252
52	36
53	27
54	1
55	1
56	30
57	45
58	360
59	210
60	756
61	210
62	360
63	45
64	30
65	1

n	a(n)
0	1
1	3
2	1
3	1
4	6
5	1
6	3
7	3
8	9
9	1
10	1
11	12
12	6
13	12
14	1
15	3
16	5
17	30
18	10
19	15
20	1
21	1
22	18
23	15
24	60
25	15
26	18
27	1
28	3
29	7
30	63
31	35
32	105
33	21
34	21
35	1
36	1
37	24
38	28
39	168
40	70
41	168
42	28
43	24
44	1
45	3
46	9
47	108
48	84
49	378
50	126
51	252
52	36
53	27
54	1
55	1
56	30
57	45
58	360
59	210
60	756
61	210
62	360
63	45
64	30
65	1