A131074 - cp's OEIS frontend

A131074 Triangular array T read by rows: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1) + T(j,k-1) for 2 <= k <= j.

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	4
10	8
11	0
12	1
13	3
14	7
15	15
16	0
17	0
18	1
19	4
20	11
21	26
22	0
23	0
24	0
25	1
26	5
27	16
28	42
29	0
30	0
31	0
32	0
33	1
34	6
35	22
36	64
37	1
38	1
39	1
40	1
41	1
42	2
43	8
44	30
45	94
46	1
47	2
48	3
49	4
50	5
51	6
52	8
53	16
54	46
55	140
56	1
57	2
58	4
59	7
60	11
61	16
62	22
63	30
64	46
65	92
66	232
67	1
68	2
69	4
70	8
71	15
72	26
73	42
74	64
75	94
76	140
77	232
78	464
79	0
80	1
81	3
82	7
83	15
84	30
85	56
86	98

[1, 1, 2, 1, 2, 4, 1, 2, 4, 8, 0, 1, 3, 7, 15, 0, 0, 1, 4, 11, 26, 0, 0, 0, 1, 5, 16, 42, 0, 0, 0, 0, 1, 6, 22, 64, 1, 1, 1, 1, 1, 2, 8, 30, 94, 1, 2, 3, 4, 5, 6, 8, 16, 46, 140, 1, 2, 4, 7, 11, 16, 22, 30, 46, 92, 232, 1, 2, 4, 8, 15, 26, 42, 64, 94, 140, 232, 464, 0, 1, 3, 7, 15, 30, 56, 98]

cp's OEIS Frontend

A131074 Triangular array T read by rows: T(j,1) = 1 for ((j-1) mod 8) < 4, else 0; T(j,k) = T(j-1,k-1) + T(j,k-1) for 2 <= k <= j.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	4
10	8
11	0
12	1
13	3
14	7
15	15
16	0
17	0
18	1
19	4
20	11
21	26
22	0
23	0
24	0
25	1
26	5
27	16
28	42
29	0
30	0
31	0
32	0
33	1
34	6
35	22
36	64
37	1
38	1
39	1
40	1
41	1
42	2
43	8
44	30
45	94
46	1
47	2
48	3
49	4
50	5
51	6
52	8
53	16
54	46
55	140
56	1
57	2
58	4
59	7
60	11
61	16
62	22
63	30
64	46
65	92
66	232
67	1
68	2
69	4
70	8
71	15
72	26
73	42
74	64
75	94
76	140
77	232
78	464
79	0
80	1
81	3
82	7
83	15
84	30
85	56
86	98

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	4
10	8
11	0
12	1
13	3
14	7
15	15
16	0
17	0
18	1
19	4
20	11
21	26
22	0
23	0
24	0
25	1
26	5
27	16
28	42
29	0
30	0
31	0
32	0
33	1
34	6
35	22
36	64
37	1
38	1
39	1
40	1
41	1
42	2
43	8
44	30
45	94
46	1
47	2
48	3
49	4
50	5
51	6
52	8
53	16
54	46
55	140
56	1
57	2
58	4
59	7
60	11
61	16
62	22
63	30
64	46
65	92
66	232
67	1
68	2
69	4
70	8
71	15
72	26
73	42
74	64
75	94
76	140
77	232
78	464
79	0
80	1
81	3
82	7
83	15
84	30
85	56
86	98

n	a(n)
1	1
2	1
3	2
4	1
5	2
6	4
7	1
8	2
9	4
10	8
11	0
12	1
13	3
14	7
15	15
16	0
17	0
18	1
19	4
20	11
21	26
22	0
23	0
24	0
25	1
26	5
27	16
28	42
29	0
30	0
31	0
32	0
33	1
34	6
35	22
36	64
37	1
38	1
39	1
40	1
41	1
42	2
43	8
44	30
45	94
46	1
47	2
48	3
49	4
50	5
51	6
52	8
53	16
54	46
55	140
56	1
57	2
58	4
59	7
60	11
61	16
62	22
63	30
64	46
65	92
66	232
67	1
68	2
69	4
70	8
71	15
72	26
73	42
74	64
75	94
76	140
77	232
78	464
79	0
80	1
81	3
82	7
83	15
84	30
85	56
86	98