A357701 - cp's OEIS frontend

A357701 Irregular triangle read by rows where row n is the vertex depths of the rooted binary tree with Colijn-Plazzotta tree number n, traversed in pre-order, numerically larger child first.

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

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

cp's OEIS Frontend

A357701 Irregular triangle read by rows where row n is the vertex depths of the rooted binary tree with Colijn-Plazzotta tree number n, traversed in pre-order, numerically larger child first.

Table of values

List of values

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

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

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