A291970 - cp's OEIS frontend

A291970 Triangle read by rows: T(n,k) = 2 * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n).

n	a(n)
0	1
1	0
2	2
3	0
4	2
5	0
6	2
7	4
8	0
9	2
10	4
11	0
12	2
13	8
14	0
15	2
16	8
17	8
18	0
19	2
20	12
21	8
22	0
23	2
24	12
25	16
26	0
27	2
28	16
29	24
30	0
31	2
32	16
33	32
34	16
35	0
36	2
37	20
38	40
39	16
40	0
41	2
42	20
43	56
44	32
45	0
46	2
47	24
48	64
49	48
50	0
51	2
52	24
53	80
54	80
55	0
56	2
57	28
58	96
59	96
60	32
61	0
62	2
63	28
64	112
65	144
66	32
67	0
68	2
69	32
70	128
71	176
72	64
73	0
74	2
75	32

[1, 0, 2, 0, 2, 0, 2, 4, 0, 2, 4, 0, 2, 8, 0, 2, 8, 8, 0, 2, 12, 8, 0, 2, 12, 16, 0, 2, 16, 24, 0, 2, 16, 32, 16, 0, 2, 20, 40, 16, 0, 2, 20, 56, 32, 0, 2, 24, 64, 48, 0, 2, 24, 80, 80, 0, 2, 28, 96, 96, 32, 0, 2, 28, 112, 144, 32, 0, 2, 32, 128, 176, 64, 0, 2, 32]

cp's OEIS Frontend

A291970 Triangle read by rows: T(n,k) = 2 * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n).

Table of values

List of values

n	a(n)
0	1
1	0
2	2
3	0
4	2
5	0
6	2
7	4
8	0
9	2
10	4
11	0
12	2
13	8
14	0
15	2
16	8
17	8
18	0
19	2
20	12
21	8
22	0
23	2
24	12
25	16
26	0
27	2
28	16
29	24
30	0
31	2
32	16
33	32
34	16
35	0
36	2
37	20
38	40
39	16
40	0
41	2
42	20
43	56
44	32
45	0
46	2
47	24
48	64
49	48
50	0
51	2
52	24
53	80
54	80
55	0
56	2
57	28
58	96
59	96
60	32
61	0
62	2
63	28
64	112
65	144
66	32
67	0
68	2
69	32
70	128
71	176
72	64
73	0
74	2
75	32

n	a(n)
0	1
1	0
2	2
3	0
4	2
5	0
6	2
7	4
8	0
9	2
10	4
11	0
12	2
13	8
14	0
15	2
16	8
17	8
18	0
19	2
20	12
21	8
22	0
23	2
24	12
25	16
26	0
27	2
28	16
29	24
30	0
31	2
32	16
33	32
34	16
35	0
36	2
37	20
38	40
39	16
40	0
41	2
42	20
43	56
44	32
45	0
46	2
47	24
48	64
49	48
50	0
51	2
52	24
53	80
54	80
55	0
56	2
57	28
58	96
59	96
60	32
61	0
62	2
63	28
64	112
65	144
66	32
67	0
68	2
69	32
70	128
71	176
72	64
73	0
74	2
75	32

n	a(n)
0	1
1	0
2	2
3	0
4	2
5	0
6	2
7	4
8	0
9	2
10	4
11	0
12	2
13	8
14	0
15	2
16	8
17	8
18	0
19	2
20	12
21	8
22	0
23	2
24	12
25	16
26	0
27	2
28	16
29	24
30	0
31	2
32	16
33	32
34	16
35	0
36	2
37	20
38	40
39	16
40	0
41	2
42	20
43	56
44	32
45	0
46	2
47	24
48	64
49	48
50	0
51	2
52	24
53	80
54	80
55	0
56	2
57	28
58	96
59	96
60	32
61	0
62	2
63	28
64	112
65	144
66	32
67	0
68	2
69	32
70	128
71	176
72	64
73	0
74	2
75	32