A168131 - cp's OEIS frontend

A168131 Number of squares and rectangles that are created at the n-th stage in the corner toothpick structure (see A152980, A153006).

n	a(n)
0	0
1	0
2	1
3	2
4	1
5	1
6	5
7	7
8	3
9	1
10	4
11	5
12	3
13	7
14	18
15	19
16	7
17	1
18	4
19	5
20	3
21	7
22	17
23	17
24	7
25	6
26	13
27	13
28	13
29	32
30	56
31	47
32	15
33	1
34	4
35	5
36	3
37	7
38	17
39	17
40	7
41	6
42	13
43	13
44	13
45	32
46	55
47	45
48	15
49	6
50	13
51	13
52	13
53	31
54	51
55	41
56	20
57	25
58	39
59	39
60	58
61	120
62	160
63	111
64	31
65	1
66	4
67	5
68	3
69	7
70	17
71	17
72	7
73	6
74	13
75	13
76	13
77	32
78	55
79	45
80	15
81	6

[0, 0, 1, 2, 1, 1, 5, 7, 3, 1, 4, 5, 3, 7, 18, 19, 7, 1, 4, 5, 3, 7, 17, 17, 7, 6, 13, 13, 13, 32, 56, 47, 15, 1, 4, 5, 3, 7, 17, 17, 7, 6, 13, 13, 13, 32, 55, 45, 15, 6, 13, 13, 13, 31, 51, 41, 20, 25, 39, 39, 58, 120, 160, 111, 31, 1, 4, 5, 3, 7, 17, 17, 7, 6, 13, 13, 13, 32, 55, 45, 15, 6]

cp's OEIS Frontend

A168131 Number of squares and rectangles that are created at the n-th stage in the corner toothpick structure (see A152980, A153006).

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	2
4	1
5	1
6	5
7	7
8	3
9	1
10	4
11	5
12	3
13	7
14	18
15	19
16	7
17	1
18	4
19	5
20	3
21	7
22	17
23	17
24	7
25	6
26	13
27	13
28	13
29	32
30	56
31	47
32	15
33	1
34	4
35	5
36	3
37	7
38	17
39	17
40	7
41	6
42	13
43	13
44	13
45	32
46	55
47	45
48	15
49	6
50	13
51	13
52	13
53	31
54	51
55	41
56	20
57	25
58	39
59	39
60	58
61	120
62	160
63	111
64	31
65	1
66	4
67	5
68	3
69	7
70	17
71	17
72	7
73	6
74	13
75	13
76	13
77	32
78	55
79	45
80	15
81	6

n	a(n)
0	0
1	0
2	1
3	2
4	1
5	1
6	5
7	7
8	3
9	1
10	4
11	5
12	3
13	7
14	18
15	19
16	7
17	1
18	4
19	5
20	3
21	7
22	17
23	17
24	7
25	6
26	13
27	13
28	13
29	32
30	56
31	47
32	15
33	1
34	4
35	5
36	3
37	7
38	17
39	17
40	7
41	6
42	13
43	13
44	13
45	32
46	55
47	45
48	15
49	6
50	13
51	13
52	13
53	31
54	51
55	41
56	20
57	25
58	39
59	39
60	58
61	120
62	160
63	111
64	31
65	1
66	4
67	5
68	3
69	7
70	17
71	17
72	7
73	6
74	13
75	13
76	13
77	32
78	55
79	45
80	15
81	6

n	a(n)
0	0
1	0
2	1
3	2
4	1
5	1
6	5
7	7
8	3
9	1
10	4
11	5
12	3
13	7
14	18
15	19
16	7
17	1
18	4
19	5
20	3
21	7
22	17
23	17
24	7
25	6
26	13
27	13
28	13
29	32
30	56
31	47
32	15
33	1
34	4
35	5
36	3
37	7
38	17
39	17
40	7
41	6
42	13
43	13
44	13
45	32
46	55
47	45
48	15
49	6
50	13
51	13
52	13
53	31
54	51
55	41
56	20
57	25
58	39
59	39
60	58
61	120
62	160
63	111
64	31
65	1
66	4
67	5
68	3
69	7
70	17
71	17
72	7
73	6
74	13
75	13
76	13
77	32
78	55
79	45
80	15
81	6