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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.

A256911 Number of terms in the enhanced triangular-number representation of n.

Table of values

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

List of values

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

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