A124732 - cp's OEIS frontend

A124732 Triangle P*M, where P is the Pascal triangle written as an infinite lower triangular matrix and M is the infinite bidiagonal matrix with (1,2,1,2,...) in the main diagonal and (2,1,2,1,...) in the subdiagonal.

n	a(n)
1	1
2	3
3	2
4	5
5	5
6	1
7	7
8	9
9	5
10	2
11	9
12	14
13	14
14	9
15	1
16	11
17	20
18	30
19	25
20	7
21	2
22	13
23	27
24	55
25	55
26	27
27	13
28	1
29	15
30	35
31	91
32	105
33	77
34	49
35	9
36	2
37	17
38	44
39	140
40	182
41	182
42	140
43	44
44	17
45	1
46	19
47	54
48	204
49	294
50	378
51	336
52	156
53	81
54	11
55	2
56	21
57	65
58	285
59	450
60	714
61	714
62	450
63	285
64	65
65	21
66	1
67	23
68	77
69	385
70	660

[1, 3, 2, 5, 5, 1, 7, 9, 5, 2, 9, 14, 14, 9, 1, 11, 20, 30, 25, 7, 2, 13, 27, 55, 55, 27, 13, 1, 15, 35, 91, 105, 77, 49, 9, 2, 17, 44, 140, 182, 182, 140, 44, 17, 1, 19, 54, 204, 294, 378, 336, 156, 81, 11, 2, 21, 65, 285, 450, 714, 714, 450, 285, 65, 21, 1, 23, 77, 385, 660]

cp's OEIS Frontend

A124732 Triangle P*M, where P is the Pascal triangle written as an infinite lower triangular matrix and M is the infinite bidiagonal matrix with (1,2,1,2,...) in the main diagonal and (2,1,2,1,...) in the subdiagonal.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	5
5	5
6	1
7	7
8	9
9	5
10	2
11	9
12	14
13	14
14	9
15	1
16	11
17	20
18	30
19	25
20	7
21	2
22	13
23	27
24	55
25	55
26	27
27	13
28	1
29	15
30	35
31	91
32	105
33	77
34	49
35	9
36	2
37	17
38	44
39	140
40	182
41	182
42	140
43	44
44	17
45	1
46	19
47	54
48	204
49	294
50	378
51	336
52	156
53	81
54	11
55	2
56	21
57	65
58	285
59	450
60	714
61	714
62	450
63	285
64	65
65	21
66	1
67	23
68	77
69	385
70	660

n	a(n)
1	1
2	3
3	2
4	5
5	5
6	1
7	7
8	9
9	5
10	2
11	9
12	14
13	14
14	9
15	1
16	11
17	20
18	30
19	25
20	7
21	2
22	13
23	27
24	55
25	55
26	27
27	13
28	1
29	15
30	35
31	91
32	105
33	77
34	49
35	9
36	2
37	17
38	44
39	140
40	182
41	182
42	140
43	44
44	17
45	1
46	19
47	54
48	204
49	294
50	378
51	336
52	156
53	81
54	11
55	2
56	21
57	65
58	285
59	450
60	714
61	714
62	450
63	285
64	65
65	21
66	1
67	23
68	77
69	385
70	660

n	a(n)
1	1
2	3
3	2
4	5
5	5
6	1
7	7
8	9
9	5
10	2
11	9
12	14
13	14
14	9
15	1
16	11
17	20
18	30
19	25
20	7
21	2
22	13
23	27
24	55
25	55
26	27
27	13
28	1
29	15
30	35
31	91
32	105
33	77
34	49
35	9
36	2
37	17
38	44
39	140
40	182
41	182
42	140
43	44
44	17
45	1
46	19
47	54
48	204
49	294
50	378
51	336
52	156
53	81
54	11
55	2
56	21
57	65
58	285
59	450
60	714
61	714
62	450
63	285
64	65
65	21
66	1
67	23
68	77
69	385
70	660