A140183 - cp's OEIS frontend

A140183 Triangle read by rows, binomial transform of an infinite lower triangular matrix with (1,2,1,2,1,2,...) in the main diagonal, (1,1,1,...) in the subdiagonal and the rest zeros.

n	a(n)
0	1
1	2
2	2
3	3
4	5
5	1
6	4
7	9
8	4
9	2
10	5
11	14
12	10
13	9
14	1
15	6
16	20
17	20
18	25
19	6
20	2
21	7
22	27
23	35
24	55
25	21
26	13
27	1
28	8
29	35
30	56
31	105
32	56
33	49
34	8
35	2
36	9
37	44
38	84
39	182
40	126
41	140
42	36
43	17
44	1
45	10
46	54
47	120
48	294
49	252
50	336
51	120
52	81
53	10
54	2
55	1
56	65
57	165
58	450
59	462
60	714
61	330
62	285
63	55
64	21
65	1

[1, 2, 2, 3, 5, 1, 4, 9, 4, 2, 5, 14, 10, 9, 1, 6, 20, 20, 25, 6, 2, 7, 27, 35, 55, 21, 13, 1, 8, 35, 56, 105, 56, 49, 8, 2, 9, 44, 84, 182, 126, 140, 36, 17, 1, 10, 54, 120, 294, 252, 336, 120, 81, 10, 2, 1, 65, 165, 450, 462, 714, 330, 285, 55, 21, 1]

cp's OEIS Frontend

A140183 Triangle read by rows, binomial transform of an infinite lower triangular matrix with (1,2,1,2,1,2,...) in the main diagonal, (1,1,1,...) in the subdiagonal and the rest zeros.

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	3
4	5
5	1
6	4
7	9
8	4
9	2
10	5
11	14
12	10
13	9
14	1
15	6
16	20
17	20
18	25
19	6
20	2
21	7
22	27
23	35
24	55
25	21
26	13
27	1
28	8
29	35
30	56
31	105
32	56
33	49
34	8
35	2
36	9
37	44
38	84
39	182
40	126
41	140
42	36
43	17
44	1
45	10
46	54
47	120
48	294
49	252
50	336
51	120
52	81
53	10
54	2
55	1
56	65
57	165
58	450
59	462
60	714
61	330
62	285
63	55
64	21
65	1

n	a(n)
0	1
1	2
2	2
3	3
4	5
5	1
6	4
7	9
8	4
9	2
10	5
11	14
12	10
13	9
14	1
15	6
16	20
17	20
18	25
19	6
20	2
21	7
22	27
23	35
24	55
25	21
26	13
27	1
28	8
29	35
30	56
31	105
32	56
33	49
34	8
35	2
36	9
37	44
38	84
39	182
40	126
41	140
42	36
43	17
44	1
45	10
46	54
47	120
48	294
49	252
50	336
51	120
52	81
53	10
54	2
55	1
56	65
57	165
58	450
59	462
60	714
61	330
62	285
63	55
64	21
65	1

n	a(n)
0	1
1	2
2	2
3	3
4	5
5	1
6	4
7	9
8	4
9	2
10	5
11	14
12	10
13	9
14	1
15	6
16	20
17	20
18	25
19	6
20	2
21	7
22	27
23	35
24	55
25	21
26	13
27	1
28	8
29	35
30	56
31	105
32	56
33	49
34	8
35	2
36	9
37	44
38	84
39	182
40	126
41	140
42	36
43	17
44	1
45	10
46	54
47	120
48	294
49	252
50	336
51	120
52	81
53	10
54	2
55	1
56	65
57	165
58	450
59	462
60	714
61	330
62	285
63	55
64	21
65	1