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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.

A361645 a(n) is the least k such that n appears in the k-th row of triangle A361644.

Table of values

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

List of values

[0, 1, 2, 2, 4, 5, 5, 4, 8, 9, 10, 10, 10, 10, 9, 8, 16, 17, 18, 18, 20, 21, 21, 20, 20, 21, 21, 20, 18, 18, 17, 16, 32, 33, 34, 34, 36, 37, 37, 36, 40, 41, 42, 42, 42, 42, 41, 40, 40, 41, 42, 42, 42, 42, 41, 40, 36, 37, 37, 36, 34, 34, 33, 32, 64, 65, 66, 66]

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

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