A055794 - cp's OEIS frontend

A055794 Triangle T read by rows: T(i,0)=1 for i >= 0; T(i,i)=1 for i=0,1,2,3; T(i,i)=0 for i >= 4; T(i,j) = T(i-1,j) + T(i-2,j-1) for 1<=j<=i-1.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	2
9	1
10	1
11	4
12	4
13	2
14	0
15	1
16	5
17	7
18	4
19	1
20	0
21	1
22	6
23	11
24	8
25	3
26	0
27	0
28	1
29	7
30	16
31	15
32	7
33	1
34	0
35	0
36	1
37	8
38	22
39	26
40	15
41	4
42	0
43	0
44	0
45	1
46	9
47	29
48	42
49	30
50	11
51	1
52	0
53	0
54	0
55	1
56	10
57	37
58	64
59	56
60	26
61	5
62	0
63	0
64	0
65	0
66	1
67	11
68	46
69	93
70	98
71	56
72	16
73	1
74	0
75	0
76	0
77	0
78	1
79	12
80	56
81	130
82	162
83	112
84	42
85	6
86	0
87	0
88	0
89	0
90	0

[1, 1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 4, 4, 2, 0, 1, 5, 7, 4, 1, 0, 1, 6, 11, 8, 3, 0, 0, 1, 7, 16, 15, 7, 1, 0, 0, 1, 8, 22, 26, 15, 4, 0, 0, 0, 1, 9, 29, 42, 30, 11, 1, 0, 0, 0, 1, 10, 37, 64, 56, 26, 5, 0, 0, 0, 0, 1, 11, 46, 93, 98, 56, 16, 1, 0, 0, 0, 0, 1, 12, 56, 130, 162, 112, 42, 6, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A055794 Triangle T read by rows: T(i,0)=1 for i >= 0; T(i,i)=1 for i=0,1,2,3; T(i,i)=0 for i >= 4; T(i,j) = T(i-1,j) + T(i-2,j-1) for 1<=j<=i-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	2
9	1
10	1
11	4
12	4
13	2
14	0
15	1
16	5
17	7
18	4
19	1
20	0
21	1
22	6
23	11
24	8
25	3
26	0
27	0
28	1
29	7
30	16
31	15
32	7
33	1
34	0
35	0
36	1
37	8
38	22
39	26
40	15
41	4
42	0
43	0
44	0
45	1
46	9
47	29
48	42
49	30
50	11
51	1
52	0
53	0
54	0
55	1
56	10
57	37
58	64
59	56
60	26
61	5
62	0
63	0
64	0
65	0
66	1
67	11
68	46
69	93
70	98
71	56
72	16
73	1
74	0
75	0
76	0
77	0
78	1
79	12
80	56
81	130
82	162
83	112
84	42
85	6
86	0
87	0
88	0
89	0
90	0

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	2
9	1
10	1
11	4
12	4
13	2
14	0
15	1
16	5
17	7
18	4
19	1
20	0
21	1
22	6
23	11
24	8
25	3
26	0
27	0
28	1
29	7
30	16
31	15
32	7
33	1
34	0
35	0
36	1
37	8
38	22
39	26
40	15
41	4
42	0
43	0
44	0
45	1
46	9
47	29
48	42
49	30
50	11
51	1
52	0
53	0
54	0
55	1
56	10
57	37
58	64
59	56
60	26
61	5
62	0
63	0
64	0
65	0
66	1
67	11
68	46
69	93
70	98
71	56
72	16
73	1
74	0
75	0
76	0
77	0
78	1
79	12
80	56
81	130
82	162
83	112
84	42
85	6
86	0
87	0
88	0
89	0
90	0

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	2
9	1
10	1
11	4
12	4
13	2
14	0
15	1
16	5
17	7
18	4
19	1
20	0
21	1
22	6
23	11
24	8
25	3
26	0
27	0
28	1
29	7
30	16
31	15
32	7
33	1
34	0
35	0
36	1
37	8
38	22
39	26
40	15
41	4
42	0
43	0
44	0
45	1
46	9
47	29
48	42
49	30
50	11
51	1
52	0
53	0
54	0
55	1
56	10
57	37
58	64
59	56
60	26
61	5
62	0
63	0
64	0
65	0
66	1
67	11
68	46
69	93
70	98
71	56
72	16
73	1
74	0
75	0
76	0
77	0
78	1
79	12
80	56
81	130
82	162
83	112
84	42
85	6
86	0
87	0
88	0
89	0
90	0