A353493 - cp's OEIS frontend

A353493 The arithmetic derivative of n, reduced modulo 4.

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

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

cp's OEIS Frontend

A353493 The arithmetic derivative of n, reduced modulo 4.

Table of values

List of values

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

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

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