A214868 - cp's OEIS frontend

A214868 Triangle T read by rows: T(n,0) = T(n,n) = 1 for n>=0, for n>=2 and 1<=k<=n-1, T(n,k) = T(n-1,k-1) + T(n-1,k) if k = [n/2] or k = [(n+1)/2], else T(n,k) = T(n-1,k-1) + T(n-2,k-1) + T(n-1,k).

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	5
12	6
13	5
14	1
15	1
16	7
17	11
18	11
19	7
20	1
21	1
22	9
23	23
24	22
25	23
26	9
27	1
28	1
29	11
30	39
31	45
32	45
33	39
34	11
35	1
36	1
37	13
38	59
39	107
40	90
41	107
42	59
43	13
44	1
45	1
46	15
47	83
48	205
49	197
50	197
51	205
52	83
53	15
54	1

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 6, 5, 1, 1, 7, 11, 11, 7, 1, 1, 9, 23, 22, 23, 9, 1, 1, 11, 39, 45, 45, 39, 11, 1, 1, 13, 59, 107, 90, 107, 59, 13, 1, 1, 15, 83, 205, 197, 197, 205, 83, 15, 1]

cp's OEIS Frontend

A214868 Triangle T read by rows: T(n,0) = T(n,n) = 1 for n>=0, for n>=2 and 1<=k<=n-1, T(n,k) = T(n-1,k-1) + T(n-1,k) if k = [n/2] or k = [(n+1)/2], else T(n,k) = T(n-1,k-1) + T(n-2,k-1) + T(n-1,k).

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	5
12	6
13	5
14	1
15	1
16	7
17	11
18	11
19	7
20	1
21	1
22	9
23	23
24	22
25	23
26	9
27	1
28	1
29	11
30	39
31	45
32	45
33	39
34	11
35	1
36	1
37	13
38	59
39	107
40	90
41	107
42	59
43	13
44	1
45	1
46	15
47	83
48	205
49	197
50	197
51	205
52	83
53	15
54	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	5
12	6
13	5
14	1
15	1
16	7
17	11
18	11
19	7
20	1
21	1
22	9
23	23
24	22
25	23
26	9
27	1
28	1
29	11
30	39
31	45
32	45
33	39
34	11
35	1
36	1
37	13
38	59
39	107
40	90
41	107
42	59
43	13
44	1
45	1
46	15
47	83
48	205
49	197
50	197
51	205
52	83
53	15
54	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	5
12	6
13	5
14	1
15	1
16	7
17	11
18	11
19	7
20	1
21	1
22	9
23	23
24	22
25	23
26	9
27	1
28	1
29	11
30	39
31	45
32	45
33	39
34	11
35	1
36	1
37	13
38	59
39	107
40	90
41	107
42	59
43	13
44	1
45	1
46	15
47	83
48	205
49	197
50	197
51	205
52	83
53	15
54	1