A216216 - cp's OEIS frontend

A216216 Square array T, read by antidiagonals: T(n,k) = 0 if n-k>=3 or if k-n>=3, T(2,0) = T(1,0) = T(0,0) = T(0,1) = T(0,2) = 1, T(n,k) = T(n-1,k) + T(n,k-1).

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	0
7	3
8	3
9	0
10	0
11	3
12	6
13	3
14	0
15	0
16	0
17	9
18	9
19	0
20	0
21	0
22	0
23	9
24	18
25	9
26	0
27	0
28	0
29	0
30	0
31	27
32	27
33	0
34	0
35	0
36	0
37	0
38	0
39	27
40	54
41	27
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	81
50	81
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	81
60	162
61	81
62	0
63	0
64	0
65	0

[1, 1, 1, 1, 2, 1, 0, 3, 3, 0, 0, 3, 6, 3, 0, 0, 0, 9, 9, 0, 0, 0, 0, 9, 18, 9, 0, 0, 0, 0, 0, 27, 27, 0, 0, 0, 0, 0, 0, 27, 54, 27, 0, 0, 0, 0, 0, 0, 0, 81, 81, 0, 0, 0, 0, 0, 0, 0, 0, 81, 162, 81, 0, 0, 0, 0]

cp's OEIS Frontend

A216216 Square array T, read by antidiagonals: T(n,k) = 0 if n-k>=3 or if k-n>=3, T(2,0) = T(1,0) = T(0,0) = T(0,1) = T(0,2) = 1, T(n,k) = T(n-1,k) + T(n,k-1).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	0
7	3
8	3
9	0
10	0
11	3
12	6
13	3
14	0
15	0
16	0
17	9
18	9
19	0
20	0
21	0
22	0
23	9
24	18
25	9
26	0
27	0
28	0
29	0
30	0
31	27
32	27
33	0
34	0
35	0
36	0
37	0
38	0
39	27
40	54
41	27
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	81
50	81
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	81
60	162
61	81
62	0
63	0
64	0
65	0

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	0
7	3
8	3
9	0
10	0
11	3
12	6
13	3
14	0
15	0
16	0
17	9
18	9
19	0
20	0
21	0
22	0
23	9
24	18
25	9
26	0
27	0
28	0
29	0
30	0
31	27
32	27
33	0
34	0
35	0
36	0
37	0
38	0
39	27
40	54
41	27
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	81
50	81
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	81
60	162
61	81
62	0
63	0
64	0
65	0

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	0
7	3
8	3
9	0
10	0
11	3
12	6
13	3
14	0
15	0
16	0
17	9
18	9
19	0
20	0
21	0
22	0
23	9
24	18
25	9
26	0
27	0
28	0
29	0
30	0
31	27
32	27
33	0
34	0
35	0
36	0
37	0
38	0
39	27
40	54
41	27
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	81
50	81
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	81
60	162
61	81
62	0
63	0
64	0
65	0