A317489 - cp's OEIS frontend

A317489 Irregular triangle read by rows. For n >= 3 and 1 <= k <= floor(n/3), T(n,k) is the number of palindromic compositions of n into k parts of size at least 3.

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	1
11	1
12	1
13	0
14	1
15	1
16	1
17	1
18	1
19	0
20	2
21	1
22	1
23	2
24	1
25	1
26	0
27	3
28	0
29	1
30	1
31	3
32	2
33	1
34	0
35	4
36	0
37	1
38	1
39	1
40	4
41	3
42	1
43	1
44	0
45	5
46	0
47	3
48	1
49	1
50	5
51	4
52	3
53	1
54	1
55	0
56	6
57	0
58	6
59	0
60	1
61	1
62	6
63	5
64	6
65	3
66	1
67	0
68	7
69	0
70	10
71	0
72	1
73	1
74	1
75	7
76	6
77	10
78	6
79	1
80	1
81	0
82	8
83	0
84	15
85	0
86	4
87	1
88	1
89	8
90	7
91	15
92	10
93	4
94	1
95	1
96	0
97	9
98	0
99	21
100	0
101	10
102	0
103	1
104	1
105	9
106	8
107	21
108	15
109	10
110	4
111	1
112	0
113	10
114	0
115	28
116	0
117	20
118	0
119	1
120	1
121	1
122	10
123	9
124	28
125	21
126	20
127	10
128	1
129	1
130	0
131	11
132	0
133	36
134	0
135	35
136	0
137	5

[1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 2, 1, 1, 2, 1, 1, 0, 3, 0, 1, 1, 3, 2, 1, 0, 4, 0, 1, 1, 1, 4, 3, 1, 1, 0, 5, 0, 3, 1, 1, 5, 4, 3, 1, 1, 0, 6, 0, 6, 0, 1, 1, 6, 5, 6, 3, 1, 0, 7, 0, 10, 0, 1, 1, 1, 7, 6, 10, 6, 1, 1, 0, 8, 0, 15, 0, 4, 1, 1, 8, 7, 15, 10, 4, 1, 1, 0, 9, 0, 21, 0, 10, 0, 1, 1, 9, 8, 21, 15, 10, 4, 1, 0, 10, 0, 28, 0, 20, 0, 1, 1, 1, 10, 9, 28, 21, 20, 10, 1, 1, 0, 11, 0, 36, 0, 35, 0, 5]

cp's OEIS Frontend

A317489 Irregular triangle read by rows. For n >= 3 and 1 <= k <= floor(n/3), T(n,k) is the number of palindromic compositions of n into k parts of size at least 3.

Table of values

List of values

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	1
11	1
12	1
13	0
14	1
15	1
16	1
17	1
18	1
19	0
20	2
21	1
22	1
23	2
24	1
25	1
26	0
27	3
28	0
29	1
30	1
31	3
32	2
33	1
34	0
35	4
36	0
37	1
38	1
39	1
40	4
41	3
42	1
43	1
44	0
45	5
46	0
47	3
48	1
49	1
50	5
51	4
52	3
53	1
54	1
55	0
56	6
57	0
58	6
59	0
60	1
61	1
62	6
63	5
64	6
65	3
66	1
67	0
68	7
69	0
70	10
71	0
72	1
73	1
74	1
75	7
76	6
77	10
78	6
79	1
80	1
81	0
82	8
83	0
84	15
85	0
86	4
87	1
88	1
89	8
90	7
91	15
92	10
93	4
94	1
95	1
96	0
97	9
98	0
99	21
100	0
101	10
102	0
103	1
104	1
105	9
106	8
107	21
108	15
109	10
110	4
111	1
112	0
113	10
114	0
115	28
116	0
117	20
118	0
119	1
120	1
121	1
122	10
123	9
124	28
125	21
126	20
127	10
128	1
129	1
130	0
131	11
132	0
133	36
134	0
135	35
136	0
137	5

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	1
11	1
12	1
13	0
14	1
15	1
16	1
17	1
18	1
19	0
20	2
21	1
22	1
23	2
24	1
25	1
26	0
27	3
28	0
29	1
30	1
31	3
32	2
33	1
34	0
35	4
36	0
37	1
38	1
39	1
40	4
41	3
42	1
43	1
44	0
45	5
46	0
47	3
48	1
49	1
50	5
51	4
52	3
53	1
54	1
55	0
56	6
57	0
58	6
59	0
60	1
61	1
62	6
63	5
64	6
65	3
66	1
67	0
68	7
69	0
70	10
71	0
72	1
73	1
74	1
75	7
76	6
77	10
78	6
79	1
80	1
81	0
82	8
83	0
84	15
85	0
86	4
87	1
88	1
89	8
90	7
91	15
92	10
93	4
94	1
95	1
96	0
97	9
98	0
99	21
100	0
101	10
102	0
103	1
104	1
105	9
106	8
107	21
108	15
109	10
110	4
111	1
112	0
113	10
114	0
115	28
116	0
117	20
118	0
119	1
120	1
121	1
122	10
123	9
124	28
125	21
126	20
127	10
128	1
129	1
130	0
131	11
132	0
133	36
134	0
135	35
136	0
137	5

n	a(n)
3	1
4	1
5	1
6	1
7	1
8	1
9	0
10	1
11	1
12	1
13	0
14	1
15	1
16	1
17	1
18	1
19	0
20	2
21	1
22	1
23	2
24	1
25	1
26	0
27	3
28	0
29	1
30	1
31	3
32	2
33	1
34	0
35	4
36	0
37	1
38	1
39	1
40	4
41	3
42	1
43	1
44	0
45	5
46	0
47	3
48	1
49	1
50	5
51	4
52	3
53	1
54	1
55	0
56	6
57	0
58	6
59	0
60	1
61	1
62	6
63	5
64	6
65	3
66	1
67	0
68	7
69	0
70	10
71	0
72	1
73	1
74	1
75	7
76	6
77	10
78	6
79	1
80	1
81	0
82	8
83	0
84	15
85	0
86	4
87	1
88	1
89	8
90	7
91	15
92	10
93	4
94	1
95	1
96	0
97	9
98	0
99	21
100	0
101	10
102	0
103	1
104	1
105	9
106	8
107	21
108	15
109	10
110	4
111	1
112	0
113	10
114	0
115	28
116	0
117	20
118	0
119	1
120	1
121	1
122	10
123	9
124	28
125	21
126	20
127	10
128	1
129	1
130	0
131	11
132	0
133	36
134	0
135	35
136	0
137	5