A106246 - cp's OEIS frontend

A106246 Number triangle T(n,k)=C(n,k)C(2,n-k).

n	a(n)
0	1
1	2
2	1
3	1
4	4
5	1
6	0
7	3
8	6
9	1
10	0
11	0
12	6
13	8
14	1
15	0
16	0
17	0
18	10
19	10
20	1
21	0
22	0
23	0
24	0
25	15
26	12
27	1
28	0
29	0
30	0
31	0
32	0
33	21
34	14
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	28
43	16
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	36
53	18
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	45
64	20
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	55
76	22
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	66
89	24
90	1
91	0
92	0
93	0
94	0
95	0
96	0

[1, 2, 1, 1, 4, 1, 0, 3, 6, 1, 0, 0, 6, 8, 1, 0, 0, 0, 10, 10, 1, 0, 0, 0, 0, 15, 12, 1, 0, 0, 0, 0, 0, 21, 14, 1, 0, 0, 0, 0, 0, 0, 28, 16, 1, 0, 0, 0, 0, 0, 0, 0, 36, 18, 1, 0, 0, 0, 0, 0, 0, 0, 0, 45, 20, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 55, 22, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 66, 24, 1, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A106246 Number triangle T(n,k)=C(n,k)C(2,n-k).

Table of values

List of values

n	a(n)
0	1
1	2
2	1
3	1
4	4
5	1
6	0
7	3
8	6
9	1
10	0
11	0
12	6
13	8
14	1
15	0
16	0
17	0
18	10
19	10
20	1
21	0
22	0
23	0
24	0
25	15
26	12
27	1
28	0
29	0
30	0
31	0
32	0
33	21
34	14
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	28
43	16
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	36
53	18
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	45
64	20
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	55
76	22
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	66
89	24
90	1
91	0
92	0
93	0
94	0
95	0
96	0

n	a(n)
0	1
1	2
2	1
3	1
4	4
5	1
6	0
7	3
8	6
9	1
10	0
11	0
12	6
13	8
14	1
15	0
16	0
17	0
18	10
19	10
20	1
21	0
22	0
23	0
24	0
25	15
26	12
27	1
28	0
29	0
30	0
31	0
32	0
33	21
34	14
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	28
43	16
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	36
53	18
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	45
64	20
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	55
76	22
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	66
89	24
90	1
91	0
92	0
93	0
94	0
95	0
96	0

n	a(n)
0	1
1	2
2	1
3	1
4	4
5	1
6	0
7	3
8	6
9	1
10	0
11	0
12	6
13	8
14	1
15	0
16	0
17	0
18	10
19	10
20	1
21	0
22	0
23	0
24	0
25	15
26	12
27	1
28	0
29	0
30	0
31	0
32	0
33	21
34	14
35	1
36	0
37	0
38	0
39	0
40	0
41	0
42	28
43	16
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	36
53	18
54	1
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	45
64	20
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	55
76	22
77	1
78	0
79	0
80	0
81	0
82	0
83	0
84	0
85	0
86	0
87	0
88	66
89	24
90	1
91	0
92	0
93	0
94	0
95	0
96	0