A333275 - cp's OEIS frontend

A333275 Irregular triangle read by rows: consider the graph defined in A306302 formed from a row of n adjacent congruent rectangles by drawing the diagonals of all visible rectangles; T(n,k) (n >= 1, 2 <= k <= 2n+2) is the number of non-boundary vertices in the graph at which k polygons meet.

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	6
7	0
8	1
9	0
10	0
11	24
12	0
13	2
14	0
15	1
16	0
17	0
18	54
19	0
20	8
21	0
22	2
23	0
24	1
25	0
26	0
27	124
28	0
29	18
30	0
31	2
32	0
33	2
34	0
35	1
36	0
37	0
38	214
39	0
40	32
41	0
42	10
43	0
44	2
45	0
46	2
47	0
48	1
49	0
50	0
51	382
52	0
53	50
54	0
55	22
56	0
57	2
58	0
59	2
60	0
61	2
62	0
63	1
64	0
65	0
66	598
67	0
68	102
69	0
70	18
71	0
72	12
73	0
74	2
75	0
76	2
77	0
78	2
79	0
80	1

[0, 0, 1, 0, 0, 6, 0, 1, 0, 0, 24, 0, 2, 0, 1, 0, 0, 54, 0, 8, 0, 2, 0, 1, 0, 0, 124, 0, 18, 0, 2, 0, 2, 0, 1, 0, 0, 214, 0, 32, 0, 10, 0, 2, 0, 2, 0, 1, 0, 0, 382, 0, 50, 0, 22, 0, 2, 0, 2, 0, 2, 0, 1, 0, 0, 598, 0, 102, 0, 18, 0, 12, 0, 2, 0, 2, 0, 2, 0, 1]

cp's OEIS Frontend

A333275 Irregular triangle read by rows: consider the graph defined in A306302 formed from a row of n adjacent congruent rectangles by drawing the diagonals of all visible rectangles; T(n,k) (n >= 1, 2 <= k <= 2n+2) is the number of non-boundary vertices in the graph at which k polygons meet.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	6
7	0
8	1
9	0
10	0
11	24
12	0
13	2
14	0
15	1
16	0
17	0
18	54
19	0
20	8
21	0
22	2
23	0
24	1
25	0
26	0
27	124
28	0
29	18
30	0
31	2
32	0
33	2
34	0
35	1
36	0
37	0
38	214
39	0
40	32
41	0
42	10
43	0
44	2
45	0
46	2
47	0
48	1
49	0
50	0
51	382
52	0
53	50
54	0
55	22
56	0
57	2
58	0
59	2
60	0
61	2
62	0
63	1
64	0
65	0
66	598
67	0
68	102
69	0
70	18
71	0
72	12
73	0
74	2
75	0
76	2
77	0
78	2
79	0
80	1

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	6
7	0
8	1
9	0
10	0
11	24
12	0
13	2
14	0
15	1
16	0
17	0
18	54
19	0
20	8
21	0
22	2
23	0
24	1
25	0
26	0
27	124
28	0
29	18
30	0
31	2
32	0
33	2
34	0
35	1
36	0
37	0
38	214
39	0
40	32
41	0
42	10
43	0
44	2
45	0
46	2
47	0
48	1
49	0
50	0
51	382
52	0
53	50
54	0
55	22
56	0
57	2
58	0
59	2
60	0
61	2
62	0
63	1
64	0
65	0
66	598
67	0
68	102
69	0
70	18
71	0
72	12
73	0
74	2
75	0
76	2
77	0
78	2
79	0
80	1

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	6
7	0
8	1
9	0
10	0
11	24
12	0
13	2
14	0
15	1
16	0
17	0
18	54
19	0
20	8
21	0
22	2
23	0
24	1
25	0
26	0
27	124
28	0
29	18
30	0
31	2
32	0
33	2
34	0
35	1
36	0
37	0
38	214
39	0
40	32
41	0
42	10
43	0
44	2
45	0
46	2
47	0
48	1
49	0
50	0
51	382
52	0
53	50
54	0
55	22
56	0
57	2
58	0
59	2
60	0
61	2
62	0
63	1
64	0
65	0
66	598
67	0
68	102
69	0
70	18
71	0
72	12
73	0
74	2
75	0
76	2
77	0
78	2
79	0
80	1