A170906 - cp's OEIS frontend

A170906 Triangle read by rows: T(n,k) = number of cells that are turned from OFF to ON at stage k of the cellular automaton in the 30-60-90 triangle of hexagons defined in Comments.

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	1
10	1
11	2
12	2
13	4
14	1
15	2
16	1
17	1
18	2
19	2
20	4
21	2
22	2
23	3
24	3
25	1
26	1
27	2
28	2
29	4
30	2
31	4
32	5
33	4
34	1
35	2
36	1
37	1
38	2
39	2
40	4
41	2
42	4
43	6
44	6
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	4
54	2
55	4
56	6
57	8
58	1
59	2
60	3
61	5
62	3
63	3
64	1
65	1
66	2
67	2
68	4
69	2
70	4
71	6
72	8
73	2
74	2
75	3
76	5
77	5
78	3
79	5
80	4
81	1
82	1
83	2
84	2
85	4
86	2
87	4
88	6
89	8
90	2
91	4
92	5
93	6
94	7
95	6
96	6
97	4
98	1
99	2
100	1

[1, 1, 2, 1, 1, 2, 2, 2, 1, 1, 2, 2, 4, 1, 2, 1, 1, 2, 2, 4, 2, 2, 3, 3, 1, 1, 2, 2, 4, 2, 4, 5, 4, 1, 2, 1, 1, 2, 2, 4, 2, 4, 6, 6, 1, 2, 3, 3, 1, 1, 2, 2, 4, 2, 4, 6, 8, 1, 2, 3, 5, 3, 3, 1, 1, 2, 2, 4, 2, 4, 6, 8, 2, 2, 3, 5, 5, 3, 5, 4, 1, 1, 2, 2, 4, 2, 4, 6, 8, 2, 4, 5, 6, 7, 6, 6, 4, 1, 2, 1]

cp's OEIS Frontend

A170906 Triangle read by rows: T(n,k) = number of cells that are turned from OFF to ON at stage k of the cellular automaton in the 30-60-90 triangle of hexagons defined in Comments.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	1
10	1
11	2
12	2
13	4
14	1
15	2
16	1
17	1
18	2
19	2
20	4
21	2
22	2
23	3
24	3
25	1
26	1
27	2
28	2
29	4
30	2
31	4
32	5
33	4
34	1
35	2
36	1
37	1
38	2
39	2
40	4
41	2
42	4
43	6
44	6
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	4
54	2
55	4
56	6
57	8
58	1
59	2
60	3
61	5
62	3
63	3
64	1
65	1
66	2
67	2
68	4
69	2
70	4
71	6
72	8
73	2
74	2
75	3
76	5
77	5
78	3
79	5
80	4
81	1
82	1
83	2
84	2
85	4
86	2
87	4
88	6
89	8
90	2
91	4
92	5
93	6
94	7
95	6
96	6
97	4
98	1
99	2
100	1

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	1
10	1
11	2
12	2
13	4
14	1
15	2
16	1
17	1
18	2
19	2
20	4
21	2
22	2
23	3
24	3
25	1
26	1
27	2
28	2
29	4
30	2
31	4
32	5
33	4
34	1
35	2
36	1
37	1
38	2
39	2
40	4
41	2
42	4
43	6
44	6
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	4
54	2
55	4
56	6
57	8
58	1
59	2
60	3
61	5
62	3
63	3
64	1
65	1
66	2
67	2
68	4
69	2
70	4
71	6
72	8
73	2
74	2
75	3
76	5
77	5
78	3
79	5
80	4
81	1
82	1
83	2
84	2
85	4
86	2
87	4
88	6
89	8
90	2
91	4
92	5
93	6
94	7
95	6
96	6
97	4
98	1
99	2
100	1

n	a(n)
1	1
2	1
3	2
4	1
5	1
6	2
7	2
8	2
9	1
10	1
11	2
12	2
13	4
14	1
15	2
16	1
17	1
18	2
19	2
20	4
21	2
22	2
23	3
24	3
25	1
26	1
27	2
28	2
29	4
30	2
31	4
32	5
33	4
34	1
35	2
36	1
37	1
38	2
39	2
40	4
41	2
42	4
43	6
44	6
45	1
46	2
47	3
48	3
49	1
50	1
51	2
52	2
53	4
54	2
55	4
56	6
57	8
58	1
59	2
60	3
61	5
62	3
63	3
64	1
65	1
66	2
67	2
68	4
69	2
70	4
71	6
72	8
73	2
74	2
75	3
76	5
77	5
78	3
79	5
80	4
81	1
82	1
83	2
84	2
85	4
86	2
87	4
88	6
89	8
90	2
91	4
92	5
93	6
94	7
95	6
96	6
97	4
98	1
99	2
100	1