A368753 - cp's OEIS frontend

A368753 Irregular triangle read by rows: T(n,k) is the defect of the k-th balanced string of left/right parentheses of length 2*n, where strings within a row are in reverse lexicographical order.

n	a(n)
1	1
2	0
3	2
4	2
5	1
6	1
7	0
8	0
9	3
10	3
11	3
12	2
13	3
14	3
15	2
16	2
17	1
18	1
19	2
20	2
21	1
22	1
23	0
24	0
25	1
26	0
27	0
28	0
29	4
30	4
31	4
32	4
33	3
34	4
35	4
36	4
37	3
38	4
39	4
40	3
41	3
42	2
43	2
44	4
45	4
46	4
47	3
48	4
49	4
50	3
51	3
52	2
53	2
54	3
55	3
56	2
57	2
58	1
59	1
60	2
61	1
62	1
63	1
64	3
65	3
66	3
67	2
68	3
69	3
70	2
71	2
72	1
73	1
74	2
75	2
76	1
77	1
78	0
79	0
80	1
81	0
82	0
83	0
84	2
85	2
86	1
87	1
88	0
89	0
90	1
91	0
92	0
93	0
94	1
95	0
96	0
97	0
98	0

[1, 0, 2, 2, 1, 1, 0, 0, 3, 3, 3, 2, 3, 3, 2, 2, 1, 1, 2, 2, 1, 1, 0, 0, 1, 0, 0, 0, 4, 4, 4, 4, 3, 4, 4, 4, 3, 4, 4, 3, 3, 2, 2, 4, 4, 4, 3, 4, 4, 3, 3, 2, 2, 3, 3, 2, 2, 1, 1, 2, 1, 1, 1, 3, 3, 3, 2, 3, 3, 2, 2, 1, 1, 2, 2, 1, 1, 0, 0, 1, 0, 0, 0, 2, 2, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0]

cp's OEIS Frontend

A368753 Irregular triangle read by rows: T(n,k) is the defect of the k-th balanced string of left/right parentheses of length 2*n, where strings within a row are in reverse lexicographical order.

Table of values

List of values

n	a(n)
1	1
2	0
3	2
4	2
5	1
6	1
7	0
8	0
9	3
10	3
11	3
12	2
13	3
14	3
15	2
16	2
17	1
18	1
19	2
20	2
21	1
22	1
23	0
24	0
25	1
26	0
27	0
28	0
29	4
30	4
31	4
32	4
33	3
34	4
35	4
36	4
37	3
38	4
39	4
40	3
41	3
42	2
43	2
44	4
45	4
46	4
47	3
48	4
49	4
50	3
51	3
52	2
53	2
54	3
55	3
56	2
57	2
58	1
59	1
60	2
61	1
62	1
63	1
64	3
65	3
66	3
67	2
68	3
69	3
70	2
71	2
72	1
73	1
74	2
75	2
76	1
77	1
78	0
79	0
80	1
81	0
82	0
83	0
84	2
85	2
86	1
87	1
88	0
89	0
90	1
91	0
92	0
93	0
94	1
95	0
96	0
97	0
98	0

n	a(n)
1	1
2	0
3	2
4	2
5	1
6	1
7	0
8	0
9	3
10	3
11	3
12	2
13	3
14	3
15	2
16	2
17	1
18	1
19	2
20	2
21	1
22	1
23	0
24	0
25	1
26	0
27	0
28	0
29	4
30	4
31	4
32	4
33	3
34	4
35	4
36	4
37	3
38	4
39	4
40	3
41	3
42	2
43	2
44	4
45	4
46	4
47	3
48	4
49	4
50	3
51	3
52	2
53	2
54	3
55	3
56	2
57	2
58	1
59	1
60	2
61	1
62	1
63	1
64	3
65	3
66	3
67	2
68	3
69	3
70	2
71	2
72	1
73	1
74	2
75	2
76	1
77	1
78	0
79	0
80	1
81	0
82	0
83	0
84	2
85	2
86	1
87	1
88	0
89	0
90	1
91	0
92	0
93	0
94	1
95	0
96	0
97	0
98	0

n	a(n)
1	1
2	0
3	2
4	2
5	1
6	1
7	0
8	0
9	3
10	3
11	3
12	2
13	3
14	3
15	2
16	2
17	1
18	1
19	2
20	2
21	1
22	1
23	0
24	0
25	1
26	0
27	0
28	0
29	4
30	4
31	4
32	4
33	3
34	4
35	4
36	4
37	3
38	4
39	4
40	3
41	3
42	2
43	2
44	4
45	4
46	4
47	3
48	4
49	4
50	3
51	3
52	2
53	2
54	3
55	3
56	2
57	2
58	1
59	1
60	2
61	1
62	1
63	1
64	3
65	3
66	3
67	2
68	3
69	3
70	2
71	2
72	1
73	1
74	2
75	2
76	1
77	1
78	0
79	0
80	1
81	0
82	0
83	0
84	2
85	2
86	1
87	1
88	0
89	0
90	1
91	0
92	0
93	0
94	1
95	0
96	0
97	0
98	0