A124845 - cp's OEIS frontend

A124845 Triangle read by rows: T(n,k) = (3 - (-1)^k)*binomial(n,k)/2 (0 <= k <= n).

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	1
6	1
7	6
8	3
9	2
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	10
18	20
19	5
20	2
21	1
22	12
23	15
24	40
25	15
26	12
27	1
28	1
29	14
30	21
31	70
32	35
33	42
34	7
35	2
36	1
37	16
38	28
39	112
40	70
41	112
42	28
43	16
44	1
45	1
46	18
47	36
48	168
49	126
50	252
51	84
52	72
53	9
54	2
55	1
56	20
57	45
58	240
59	210
60	504
61	210
62	240
63	45
64	20
65	1
66	1
67	22
68	55
69	330
70	330
71	924
72	462
73	660
74	165

[1, 1, 2, 1, 4, 1, 1, 6, 3, 2, 1, 8, 6, 8, 1, 1, 10, 10, 20, 5, 2, 1, 12, 15, 40, 15, 12, 1, 1, 14, 21, 70, 35, 42, 7, 2, 1, 16, 28, 112, 70, 112, 28, 16, 1, 1, 18, 36, 168, 126, 252, 84, 72, 9, 2, 1, 20, 45, 240, 210, 504, 210, 240, 45, 20, 1, 1, 22, 55, 330, 330, 924, 462, 660, 165]

cp's OEIS Frontend

A124845 Triangle read by rows: T(n,k) = (3 - (-1)^k)*binomial(n,k)/2 (0 <= k <= n).

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	1
6	1
7	6
8	3
9	2
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	10
18	20
19	5
20	2
21	1
22	12
23	15
24	40
25	15
26	12
27	1
28	1
29	14
30	21
31	70
32	35
33	42
34	7
35	2
36	1
37	16
38	28
39	112
40	70
41	112
42	28
43	16
44	1
45	1
46	18
47	36
48	168
49	126
50	252
51	84
52	72
53	9
54	2
55	1
56	20
57	45
58	240
59	210
60	504
61	210
62	240
63	45
64	20
65	1
66	1
67	22
68	55
69	330
70	330
71	924
72	462
73	660
74	165

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	1
6	1
7	6
8	3
9	2
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	10
18	20
19	5
20	2
21	1
22	12
23	15
24	40
25	15
26	12
27	1
28	1
29	14
30	21
31	70
32	35
33	42
34	7
35	2
36	1
37	16
38	28
39	112
40	70
41	112
42	28
43	16
44	1
45	1
46	18
47	36
48	168
49	126
50	252
51	84
52	72
53	9
54	2
55	1
56	20
57	45
58	240
59	210
60	504
61	210
62	240
63	45
64	20
65	1
66	1
67	22
68	55
69	330
70	330
71	924
72	462
73	660
74	165

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	1
6	1
7	6
8	3
9	2
10	1
11	8
12	6
13	8
14	1
15	1
16	10
17	10
18	20
19	5
20	2
21	1
22	12
23	15
24	40
25	15
26	12
27	1
28	1
29	14
30	21
31	70
32	35
33	42
34	7
35	2
36	1
37	16
38	28
39	112
40	70
41	112
42	28
43	16
44	1
45	1
46	18
47	36
48	168
49	126
50	252
51	84
52	72
53	9
54	2
55	1
56	20
57	45
58	240
59	210
60	504
61	210
62	240
63	45
64	20
65	1
66	1
67	22
68	55
69	330
70	330
71	924
72	462
73	660
74	165