A248639 - cp's OEIS frontend

A248639 Least nonnegative sequence which does not contain a 4-term equidistant subsequence (a(n+k*d); k=0,1,2,3) in arithmetic progression.

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	1
12	1
13	2
14	0
15	0
16	0
17	1
18	0
19	1
20	1
21	1
22	2
23	2
24	2
25	0
26	0
27	2
28	0
29	0
30	0
31	1
32	1
33	0
34	1
35	1
36	0
37	1
38	1
39	1
40	2
41	2
42	1
43	2
44	1
45	2
46	2
47	4
48	0
49	0
50	0
51	2
52	0
53	0
54	2
55	0
56	0
57	0
58	1
59	1
60	1
61	2
62	0
63	1
64	0
65	0
66	0
67	1
68	1
69	1
70	2
71	3
72	1
73	2
74	1
75	1
76	1
77	2
78	2
79	0
80	2
81	2
82	2
83	4
84	4
85	3
86	0
87	0
88	0
89	2
90	0
91	1
92	2
93	0
94	4
95	2
96	1
97	5
98	0
99	2
100	1
101	1
102	2
103	1
104	0
105	0
106	2
107	2
108	0
109	0
110	0
111	3
112	0
113	0
114	1
115	1
116	1
117	4
118	1
119	2
120	3
121	0
122	1
123	2
124	1
125	0
126	3
127	3
128	4
129	1
130	1
131	3

[0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 2, 0, 0, 0, 1, 0, 1, 1, 1, 2, 2, 2, 0, 0, 2, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 2, 2, 1, 2, 1, 2, 2, 4, 0, 0, 0, 2, 0, 0, 2, 0, 0, 0, 1, 1, 1, 2, 0, 1, 0, 0, 0, 1, 1, 1, 2, 3, 1, 2, 1, 1, 1, 2, 2, 0, 2, 2, 2, 4, 4, 3, 0, 0, 0, 2, 0, 1, 2, 0, 4, 2, 1, 5, 0, 2, 1, 1, 2, 1, 0, 0, 2, 2, 0, 0, 0, 3, 0, 0, 1, 1, 1, 4, 1, 2, 3, 0, 1, 2, 1, 0, 3, 3, 4, 1, 1, 3]

cp's OEIS Frontend

A248639 Least nonnegative sequence which does not contain a 4-term equidistant subsequence (a(n+k*d); k=0,1,2,3) in arithmetic progression.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	1
12	1
13	2
14	0
15	0
16	0
17	1
18	0
19	1
20	1
21	1
22	2
23	2
24	2
25	0
26	0
27	2
28	0
29	0
30	0
31	1
32	1
33	0
34	1
35	1
36	0
37	1
38	1
39	1
40	2
41	2
42	1
43	2
44	1
45	2
46	2
47	4
48	0
49	0
50	0
51	2
52	0
53	0
54	2
55	0
56	0
57	0
58	1
59	1
60	1
61	2
62	0
63	1
64	0
65	0
66	0
67	1
68	1
69	1
70	2
71	3
72	1
73	2
74	1
75	1
76	1
77	2
78	2
79	0
80	2
81	2
82	2
83	4
84	4
85	3
86	0
87	0
88	0
89	2
90	0
91	1
92	2
93	0
94	4
95	2
96	1
97	5
98	0
99	2
100	1
101	1
102	2
103	1
104	0
105	0
106	2
107	2
108	0
109	0
110	0
111	3
112	0
113	0
114	1
115	1
116	1
117	4
118	1
119	2
120	3
121	0
122	1
123	2
124	1
125	0
126	3
127	3
128	4
129	1
130	1
131	3

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	1
12	1
13	2
14	0
15	0
16	0
17	1
18	0
19	1
20	1
21	1
22	2
23	2
24	2
25	0
26	0
27	2
28	0
29	0
30	0
31	1
32	1
33	0
34	1
35	1
36	0
37	1
38	1
39	1
40	2
41	2
42	1
43	2
44	1
45	2
46	2
47	4
48	0
49	0
50	0
51	2
52	0
53	0
54	2
55	0
56	0
57	0
58	1
59	1
60	1
61	2
62	0
63	1
64	0
65	0
66	0
67	1
68	1
69	1
70	2
71	3
72	1
73	2
74	1
75	1
76	1
77	2
78	2
79	0
80	2
81	2
82	2
83	4
84	4
85	3
86	0
87	0
88	0
89	2
90	0
91	1
92	2
93	0
94	4
95	2
96	1
97	5
98	0
99	2
100	1
101	1
102	2
103	1
104	0
105	0
106	2
107	2
108	0
109	0
110	0
111	3
112	0
113	0
114	1
115	1
116	1
117	4
118	1
119	2
120	3
121	0
122	1
123	2
124	1
125	0
126	3
127	3
128	4
129	1
130	1
131	3

n	a(n)
0	0
1	0
2	0
3	1
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	1
12	1
13	2
14	0
15	0
16	0
17	1
18	0
19	1
20	1
21	1
22	2
23	2
24	2
25	0
26	0
27	2
28	0
29	0
30	0
31	1
32	1
33	0
34	1
35	1
36	0
37	1
38	1
39	1
40	2
41	2
42	1
43	2
44	1
45	2
46	2
47	4
48	0
49	0
50	0
51	2
52	0
53	0
54	2
55	0
56	0
57	0
58	1
59	1
60	1
61	2
62	0
63	1
64	0
65	0
66	0
67	1
68	1
69	1
70	2
71	3
72	1
73	2
74	1
75	1
76	1
77	2
78	2
79	0
80	2
81	2
82	2
83	4
84	4
85	3
86	0
87	0
88	0
89	2
90	0
91	1
92	2
93	0
94	4
95	2
96	1
97	5
98	0
99	2
100	1
101	1
102	2
103	1
104	0
105	0
106	2
107	2
108	0
109	0
110	0
111	3
112	0
113	0
114	1
115	1
116	1
117	4
118	1
119	2
120	3
121	0
122	1
123	2
124	1
125	0
126	3
127	3
128	4
129	1
130	1
131	3