A336123 - cp's OEIS frontend

A336123 a(1) = 0, a(2) = 1, and for n > 2, a(n) = [A122111(n) == 1 (mod 4)] + a(A253553(n)).

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	1
11	1
12	2
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	2
21	2
22	1
23	1
24	2
25	1
26	1
27	3
28	2
29	1
30	1
31	1
32	2
33	2
34	1
35	1
36	3
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	2
45	3
46	1
47	1
48	2
49	2
50	2
51	2
52	2
53	1
54	1
55	1
56	2
57	2
58	1
59	1
60	3
61	1
62	1
63	3
64	3
65	1
66	1
67	1
68	2
69	2
70	2
71	1
72	3
73	1
74	1
75	2
76	2
77	2
78	1
79	1
80	2
81	4
82	1
83	1
84	3
85	1
86	1
87	2
88	2
89	1
90	1
91	2
92	2
93	2
94	1
95	1
96	3
97	1
98	1
99	3
100	2
101	1
102	1
103	1
104	2
105	2

[0, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 3, 2, 1, 1, 1, 2, 2, 1, 1, 3, 1, 1, 2, 2, 1, 1, 1, 2, 3, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 1, 1, 3, 1, 1, 3, 3, 1, 1, 1, 2, 2, 2, 1, 3, 1, 1, 2, 2, 2, 1, 1, 2, 4, 1, 1, 3, 1, 1, 2, 2, 1, 1, 2, 2, 2, 1, 1, 3, 1, 1, 3, 2, 1, 1, 1, 2, 2]

cp's OEIS Frontend

A336123 a(1) = 0, a(2) = 1, and for n > 2, a(n) = [A122111(n) == 1 (mod 4)] + a(A253553(n)).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	1
11	1
12	2
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	2
21	2
22	1
23	1
24	2
25	1
26	1
27	3
28	2
29	1
30	1
31	1
32	2
33	2
34	1
35	1
36	3
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	2
45	3
46	1
47	1
48	2
49	2
50	2
51	2
52	2
53	1
54	1
55	1
56	2
57	2
58	1
59	1
60	3
61	1
62	1
63	3
64	3
65	1
66	1
67	1
68	2
69	2
70	2
71	1
72	3
73	1
74	1
75	2
76	2
77	2
78	1
79	1
80	2
81	4
82	1
83	1
84	3
85	1
86	1
87	2
88	2
89	1
90	1
91	2
92	2
93	2
94	1
95	1
96	3
97	1
98	1
99	3
100	2
101	1
102	1
103	1
104	2
105	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	1
11	1
12	2
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	2
21	2
22	1
23	1
24	2
25	1
26	1
27	3
28	2
29	1
30	1
31	1
32	2
33	2
34	1
35	1
36	3
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	2
45	3
46	1
47	1
48	2
49	2
50	2
51	2
52	2
53	1
54	1
55	1
56	2
57	2
58	1
59	1
60	3
61	1
62	1
63	3
64	3
65	1
66	1
67	1
68	2
69	2
70	2
71	1
72	3
73	1
74	1
75	2
76	2
77	2
78	1
79	1
80	2
81	4
82	1
83	1
84	3
85	1
86	1
87	2
88	2
89	1
90	1
91	2
92	2
93	2
94	1
95	1
96	3
97	1
98	1
99	3
100	2
101	1
102	1
103	1
104	2
105	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	2
10	1
11	1
12	2
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	2
21	2
22	1
23	1
24	2
25	1
26	1
27	3
28	2
29	1
30	1
31	1
32	2
33	2
34	1
35	1
36	3
37	1
38	1
39	2
40	2
41	1
42	1
43	1
44	2
45	3
46	1
47	1
48	2
49	2
50	2
51	2
52	2
53	1
54	1
55	1
56	2
57	2
58	1
59	1
60	3
61	1
62	1
63	3
64	3
65	1
66	1
67	1
68	2
69	2
70	2
71	1
72	3
73	1
74	1
75	2
76	2
77	2
78	1
79	1
80	2
81	4
82	1
83	1
84	3
85	1
86	1
87	2
88	2
89	1
90	1
91	2
92	2
93	2
94	1
95	1
96	3
97	1
98	1
99	3
100	2
101	1
102	1
103	1
104	2
105	2