A185587 - cp's OEIS frontend

A185587 Irregular triangle read by rows: row n gives a list of the lengths of the free spaces at the n-th stage in a Rule 18 cellular automaton.

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

[1, 3, 1, 1, 1, 7, 1, 5, 1, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 15, 1, 13, 1, 3, 11, 3, 1, 1, 1, 9, 1, 1, 1, 7, 7, 7, 1, 5, 1, 5, 1, 5, 1, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 31, 1, 29, 1, 3, 27, 3, 1, 1, 1, 25, 1, 1, 1, 7, 23, 7, 1, 5, 1, 21, 1, 5, 1, 3, 3, 3, 19, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 17, 1, 1, 1, 1, 1, 1, 1, 15, 15, 15, 1, 13, 1, 13, 1, 13, 1, 3, 11, 3, 11, 3, 11, 3]

cp's OEIS Frontend

A185587 Irregular triangle read by rows: row n gives a list of the lengths of the free spaces at the n-th stage in a Rule 18 cellular automaton.

Table of values

List of values

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

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

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