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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.

A284000 a(n) = a(a(n-A002828(n))) + a(n-a(n-A002828(n))) with a(1) = a(2) = a(3) = 1, where A002828(n) = the least number of squares that add up to n.

Table of values

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

List of values

[1, 1, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 10, 9, 10, 9, 10, 11, 12, 13, 14, 15, 16, 15, 16, 17, 18, 17, 18, 19, 20, 19, 22, 21, 22, 23, 22, 23, 24, 25, 26, 27, 26, 27, 28, 29, 30, 29, 30, 31, 32, 33, 34, 35, 34, 37, 38, 37, 38, 39, 38, 39, 38, 39, 40, 39, 42, 41, 42]

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

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