A223968 - cp's OEIS frontend

A223968 Square array T, read by antidiagonals: T(n,k) = 0 if n-k >= 5 or if k-n >= 6, T(4,0) = T(3,0) = T(2,0) = T(1,0) = T(0,0) = T(0,1) = T(0,2) = T(0,3) = T(0,4) = T(0,5) = 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	1
7	3
8	3
9	1
10	1
11	4
12	6
13	4
14	1
15	1
16	5
17	10
18	10
19	5
20	0
21	0
22	6
23	15
24	20
25	15
26	5
27	0
28	0
29	6
30	21
31	35
32	35
33	20
34	0
35	0
36	0
37	0
38	27
39	56
40	70
41	55
42	20
43	0
44	0
45	0
46	0
47	27
48	83
49	126
50	125
51	75
52	0
53	0
54	0
55	0
56	0
57	0
58	110
59	209
60	251
61	200
62	75
63	0
64	0
65	0
66	0
67	0
68	0
69	110
70	319
71	460
72	451
73	275
74	0
75	0
76	0
77	0
78	0
79	0
80	0

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 10, 10, 5, 0, 0, 6, 15, 20, 15, 5, 0, 0, 6, 21, 35, 35, 20, 0, 0, 0, 0, 27, 56, 70, 55, 20, 0, 0, 0, 0, 27, 83, 126, 125, 75, 0, 0, 0, 0, 0, 0, 110, 209, 251, 200, 75, 0, 0, 0, 0, 0, 0, 110, 319, 460, 451, 275, 0, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A223968 Square array T, read by antidiagonals: T(n,k) = 0 if n-k >= 5 or if k-n >= 6, T(4,0) = T(3,0) = T(2,0) = T(1,0) = T(0,0) = T(0,1) = T(0,2) = T(0,3) = T(0,4) = T(0,5) = 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	1
7	3
8	3
9	1
10	1
11	4
12	6
13	4
14	1
15	1
16	5
17	10
18	10
19	5
20	0
21	0
22	6
23	15
24	20
25	15
26	5
27	0
28	0
29	6
30	21
31	35
32	35
33	20
34	0
35	0
36	0
37	0
38	27
39	56
40	70
41	55
42	20
43	0
44	0
45	0
46	0
47	27
48	83
49	126
50	125
51	75
52	0
53	0
54	0
55	0
56	0
57	0
58	110
59	209
60	251
61	200
62	75
63	0
64	0
65	0
66	0
67	0
68	0
69	110
70	319
71	460
72	451
73	275
74	0
75	0
76	0
77	0
78	0
79	0
80	0

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	3
9	1
10	1
11	4
12	6
13	4
14	1
15	1
16	5
17	10
18	10
19	5
20	0
21	0
22	6
23	15
24	20
25	15
26	5
27	0
28	0
29	6
30	21
31	35
32	35
33	20
34	0
35	0
36	0
37	0
38	27
39	56
40	70
41	55
42	20
43	0
44	0
45	0
46	0
47	27
48	83
49	126
50	125
51	75
52	0
53	0
54	0
55	0
56	0
57	0
58	110
59	209
60	251
61	200
62	75
63	0
64	0
65	0
66	0
67	0
68	0
69	110
70	319
71	460
72	451
73	275
74	0
75	0
76	0
77	0
78	0
79	0
80	0

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	3
9	1
10	1
11	4
12	6
13	4
14	1
15	1
16	5
17	10
18	10
19	5
20	0
21	0
22	6
23	15
24	20
25	15
26	5
27	0
28	0
29	6
30	21
31	35
32	35
33	20
34	0
35	0
36	0
37	0
38	27
39	56
40	70
41	55
42	20
43	0
44	0
45	0
46	0
47	27
48	83
49	126
50	125
51	75
52	0
53	0
54	0
55	0
56	0
57	0
58	110
59	209
60	251
61	200
62	75
63	0
64	0
65	0
66	0
67	0
68	0
69	110
70	319
71	460
72	451
73	275
74	0
75	0
76	0
77	0
78	0
79	0
80	0