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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A190770 [(bn+c)r]-b[nr]-[cr], where (r,b,c)=(sqrt(1/2),3,1) and [ ]=floor.

Table of values

n a(n)
1 2
2 1
3 1
4 3
5 2
6 1
7 3
8 2
9 1
10 0
11 3
12 2
13 1
14 3
15 2
16 1
17 0
18 2
19 2
20 1
21 3
22 2
23 1
24 3
25 2
26 1
27 0
28 3
29 2
30 1
31 3
32 2
33 1
34 0
35 2
36 2
37 1
38 3
39 2
40 1
41 3
42 2
43 1
44 1
45 3
46 2
47 1
48 3
49 2
50 1
51 0
52 3
53 2
54 1
55 3
56 2
57 1
58 0
59 2
60 1
61 1
62 3
63 2
64 1
65 3
66 2
67 1
68 0
69 3
70 2
71 1
72 3
73 2
74 1
75 0
76 2
77 2
78 1
79 3
80 2
81 1
82 3
83 2
84 1
85 1
86 3
87 2
88 1
89 3
90 2
91 1
92 0
93 2
94 2
95 1
96 3
97 2
98 1
99 0
100 2
101 1
102 1
103 3
104 2
105 1
106 3
107 2
108 1
109 0
110 3
111 2
112 1
113 3
114 2
115 1
116 0
117 2
118 2
119 1
120 3
121 2
122 1
123 3
124 2
125 1
126 0
127 3
128 2
129 1
130 3
131 2
132 1

List of values

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

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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