A276204 - cp's OEIS frontend

A276204 a(0) = a(1) = 0. For n>1 a(n) is the smallest nonnegative integer such that there is no arithmetic progression k,m,n (of length 3) such that a(k)+a(m) = a(n).

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	2
16	2
17	1
18	4
19	4
20	1
21	4
22	4
23	1
24	2
25	2
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	2
34	2
35	1
36	0
37	0
38	1
39	0
40	0
41	1
42	2
43	2
44	1
45	4
46	4
47	1
48	4
49	4
50	1
51	2
52	2
53	1
54	7
55	7
56	1
57	7
58	7
59	1
60	2
61	2
62	1
63	7
64	7
65	1
66	7
67	7
68	1
69	2
70	2
71	1
72	4
73	4
74	1
75	4
76	4
77	1
78	2
79	2
80	1
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	2
89	1
90	0
91	0
92	1
93	0
94	0
95	1
96	2
97	2
98	1
99	4
100	4
101	1
102	4
103	4
104	1
105	2
106	2
107	1
108	0
109	0
110	1
111	0
112	0
113	1
114	2
115	2
116	1
117	0
118	0
119	1
120	0

[0, 0, 1, 0, 0, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 2, 2, 1, 4, 4, 1, 4, 4, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 2, 2, 1, 4, 4, 1, 4, 4, 1, 2, 2, 1, 7, 7, 1, 7, 7, 1, 2, 2, 1, 7, 7, 1, 7, 7, 1, 2, 2, 1, 4, 4, 1, 4, 4, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 2, 2, 1, 4, 4, 1, 4, 4, 1, 2, 2, 1, 0, 0, 1, 0, 0, 1, 2, 2, 1, 0, 0, 1, 0]

cp's OEIS Frontend

A276204 a(0) = a(1) = 0. For n>1 a(n) is the smallest nonnegative integer such that there is no arithmetic progression k,m,n (of length 3) such that a(k)+a(m) = a(n).

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	2
16	2
17	1
18	4
19	4
20	1
21	4
22	4
23	1
24	2
25	2
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	2
34	2
35	1
36	0
37	0
38	1
39	0
40	0
41	1
42	2
43	2
44	1
45	4
46	4
47	1
48	4
49	4
50	1
51	2
52	2
53	1
54	7
55	7
56	1
57	7
58	7
59	1
60	2
61	2
62	1
63	7
64	7
65	1
66	7
67	7
68	1
69	2
70	2
71	1
72	4
73	4
74	1
75	4
76	4
77	1
78	2
79	2
80	1
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	2
89	1
90	0
91	0
92	1
93	0
94	0
95	1
96	2
97	2
98	1
99	4
100	4
101	1
102	4
103	4
104	1
105	2
106	2
107	1
108	0
109	0
110	1
111	0
112	0
113	1
114	2
115	2
116	1
117	0
118	0
119	1
120	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	2
16	2
17	1
18	4
19	4
20	1
21	4
22	4
23	1
24	2
25	2
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	2
34	2
35	1
36	0
37	0
38	1
39	0
40	0
41	1
42	2
43	2
44	1
45	4
46	4
47	1
48	4
49	4
50	1
51	2
52	2
53	1
54	7
55	7
56	1
57	7
58	7
59	1
60	2
61	2
62	1
63	7
64	7
65	1
66	7
67	7
68	1
69	2
70	2
71	1
72	4
73	4
74	1
75	4
76	4
77	1
78	2
79	2
80	1
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	2
89	1
90	0
91	0
92	1
93	0
94	0
95	1
96	2
97	2
98	1
99	4
100	4
101	1
102	4
103	4
104	1
105	2
106	2
107	1
108	0
109	0
110	1
111	0
112	0
113	1
114	2
115	2
116	1
117	0
118	0
119	1
120	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	2
7	2
8	1
9	0
10	0
11	1
12	0
13	0
14	1
15	2
16	2
17	1
18	4
19	4
20	1
21	4
22	4
23	1
24	2
25	2
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	2
34	2
35	1
36	0
37	0
38	1
39	0
40	0
41	1
42	2
43	2
44	1
45	4
46	4
47	1
48	4
49	4
50	1
51	2
52	2
53	1
54	7
55	7
56	1
57	7
58	7
59	1
60	2
61	2
62	1
63	7
64	7
65	1
66	7
67	7
68	1
69	2
70	2
71	1
72	4
73	4
74	1
75	4
76	4
77	1
78	2
79	2
80	1
81	0
82	0
83	1
84	0
85	0
86	1
87	2
88	2
89	1
90	0
91	0
92	1
93	0
94	0
95	1
96	2
97	2
98	1
99	4
100	4
101	1
102	4
103	4
104	1
105	2
106	2
107	1
108	0
109	0
110	1
111	0
112	0
113	1
114	2
115	2
116	1
117	0
118	0
119	1
120	0