A124927 - cp's OEIS frontend

A124927 Triangle read by rows: T(n,0)=1, T(n,k)=2*binomial(n,k) if k>0 (0<=k<=n).

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	2
6	1
7	6
8	6
9	2
10	1
11	8
12	12
13	8
14	2
15	1
16	10
17	20
18	20
19	10
20	2
21	1
22	12
23	30
24	40
25	30
26	12
27	2
28	1
29	14
30	42
31	70
32	70
33	42
34	14
35	2
36	1
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	2
45	1
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	2
55	1
56	20
57	90
58	240
59	420
60	504
61	420
62	240
63	90
64	20
65	2
66	1
67	22
68	110
69	330
70	660
71	924
72	924
73	660
74	330
75	110
76	22
77	2

[1, 1, 2, 1, 4, 2, 1, 6, 6, 2, 1, 8, 12, 8, 2, 1, 10, 20, 20, 10, 2, 1, 12, 30, 40, 30, 12, 2, 1, 14, 42, 70, 70, 42, 14, 2, 1, 16, 56, 112, 140, 112, 56, 16, 2, 1, 18, 72, 168, 252, 252, 168, 72, 18, 2, 1, 20, 90, 240, 420, 504, 420, 240, 90, 20, 2, 1, 22, 110, 330, 660, 924, 924, 660, 330, 110, 22, 2]

cp's OEIS Frontend

A124927 Triangle read by rows: T(n,0)=1, T(n,k)=2*binomial(n,k) if k>0 (0<=k<=n).

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	2
6	1
7	6
8	6
9	2
10	1
11	8
12	12
13	8
14	2
15	1
16	10
17	20
18	20
19	10
20	2
21	1
22	12
23	30
24	40
25	30
26	12
27	2
28	1
29	14
30	42
31	70
32	70
33	42
34	14
35	2
36	1
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	2
45	1
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	2
55	1
56	20
57	90
58	240
59	420
60	504
61	420
62	240
63	90
64	20
65	2
66	1
67	22
68	110
69	330
70	660
71	924
72	924
73	660
74	330
75	110
76	22
77	2

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	2
6	1
7	6
8	6
9	2
10	1
11	8
12	12
13	8
14	2
15	1
16	10
17	20
18	20
19	10
20	2
21	1
22	12
23	30
24	40
25	30
26	12
27	2
28	1
29	14
30	42
31	70
32	70
33	42
34	14
35	2
36	1
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	2
45	1
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	2
55	1
56	20
57	90
58	240
59	420
60	504
61	420
62	240
63	90
64	20
65	2
66	1
67	22
68	110
69	330
70	660
71	924
72	924
73	660
74	330
75	110
76	22
77	2

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	2
6	1
7	6
8	6
9	2
10	1
11	8
12	12
13	8
14	2
15	1
16	10
17	20
18	20
19	10
20	2
21	1
22	12
23	30
24	40
25	30
26	12
27	2
28	1
29	14
30	42
31	70
32	70
33	42
34	14
35	2
36	1
37	16
38	56
39	112
40	140
41	112
42	56
43	16
44	2
45	1
46	18
47	72
48	168
49	252
50	252
51	168
52	72
53	18
54	2
55	1
56	20
57	90
58	240
59	420
60	504
61	420
62	240
63	90
64	20
65	2
66	1
67	22
68	110
69	330
70	660
71	924
72	924
73	660
74	330
75	110
76	22
77	2