A276696 - cp's OEIS frontend

A276696 Triangle read by rows, T(n,k) = T(n-1, k-1) + T(n-2, k) if k is odd, T(n-1, k-1) + T(n-1, k) if k is even, for k<=0<=n and n>=2 with T(0,0)=T(1,0)=T(1,1)=0 and T(n,k)=0 when k>n, k<0, or n<0.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	4
13	2
14	1
15	1
16	3
17	6
18	5
19	3
20	1
21	1
22	3
23	9
24	8
25	8
26	3
27	1
28	1
29	4
30	12
31	14
32	16
33	9
34	4
35	1
36	1
37	4
38	16
39	20
40	30
41	19
42	13
43	4
44	1
45	1
46	5
47	20
48	30
49	50
50	39
51	32
52	14
53	5
54	1
55	1
56	5
57	25
58	40
59	80
60	69
61	71
62	36
63	19
64	5
65	1
66	1
67	6
68	30
69	55
70	120
71	119
72	140
73	85
74	55
75	20
76	6
77	1

[1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 4, 2, 1, 1, 3, 6, 5, 3, 1, 1, 3, 9, 8, 8, 3, 1, 1, 4, 12, 14, 16, 9, 4, 1, 1, 4, 16, 20, 30, 19, 13, 4, 1, 1, 5, 20, 30, 50, 39, 32, 14, 5, 1, 1, 5, 25, 40, 80, 69, 71, 36, 19, 5, 1, 1, 6, 30, 55, 120, 119, 140, 85, 55, 20, 6, 1]

cp's OEIS Frontend

A276696 Triangle read by rows, T(n,k) = T(n-1, k-1) + T(n-2, k) if k is odd, T(n-1, k-1) + T(n-1, k) if k is even, for k<=0<=n and n>=2 with T(0,0)=T(1,0)=T(1,1)=0 and T(n,k)=0 when k>n, k<0, or n<0.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	4
13	2
14	1
15	1
16	3
17	6
18	5
19	3
20	1
21	1
22	3
23	9
24	8
25	8
26	3
27	1
28	1
29	4
30	12
31	14
32	16
33	9
34	4
35	1
36	1
37	4
38	16
39	20
40	30
41	19
42	13
43	4
44	1
45	1
46	5
47	20
48	30
49	50
50	39
51	32
52	14
53	5
54	1
55	1
56	5
57	25
58	40
59	80
60	69
61	71
62	36
63	19
64	5
65	1
66	1
67	6
68	30
69	55
70	120
71	119
72	140
73	85
74	55
75	20
76	6
77	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	4
13	2
14	1
15	1
16	3
17	6
18	5
19	3
20	1
21	1
22	3
23	9
24	8
25	8
26	3
27	1
28	1
29	4
30	12
31	14
32	16
33	9
34	4
35	1
36	1
37	4
38	16
39	20
40	30
41	19
42	13
43	4
44	1
45	1
46	5
47	20
48	30
49	50
50	39
51	32
52	14
53	5
54	1
55	1
56	5
57	25
58	40
59	80
60	69
61	71
62	36
63	19
64	5
65	1
66	1
67	6
68	30
69	55
70	120
71	119
72	140
73	85
74	55
75	20
76	6
77	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	2
9	1
10	1
11	2
12	4
13	2
14	1
15	1
16	3
17	6
18	5
19	3
20	1
21	1
22	3
23	9
24	8
25	8
26	3
27	1
28	1
29	4
30	12
31	14
32	16
33	9
34	4
35	1
36	1
37	4
38	16
39	20
40	30
41	19
42	13
43	4
44	1
45	1
46	5
47	20
48	30
49	50
50	39
51	32
52	14
53	5
54	1
55	1
56	5
57	25
58	40
59	80
60	69
61	71
62	36
63	19
64	5
65	1
66	1
67	6
68	30
69	55
70	120
71	119
72	140
73	85
74	55
75	20
76	6
77	1