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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.

A334671 Number of ways to write n as the sum of a squarefree number (A005117) and a square (A000290).

Table of values

n a(n)
1 1
2 2
3 2
4 1
5 2
6 3
7 3
8 1
9 1
10 3
11 4
12 2
13 1
14 4
15 4
16 2
17 3
18 3
19 4
20 2
21 3
22 4
23 5
24 2
25 1
26 5
27 4
28 2
29 2
30 6
31 5
32 3
33 3
34 3
35 6
36 2
37 4
38 7
39 7
40 3
41 3
42 7
43 5
44 3
45 2
46 6
47 7
48 3
49 2
50 5
51 7
52 3
53 3
54 4
55 7
56 4
57 4
58 5
59 7
60 4
61 2
62 8
63 5
64 3
65 4
66 8
67 7
68 4
69 5
70 7
71 9
72 3
73 4
74 7
75 7
76 2
77 5
78 9
79 6
80 4
81 3
82 8
83 10
84 4
85 3
86 9
87 10
88 4
89 4
90 6

List of values

[1, 2, 2, 1, 2, 3, 3, 1, 1, 3, 4, 2, 1, 4, 4, 2, 3, 3, 4, 2, 3, 4, 5, 2, 1, 5, 4, 2, 2, 6, 5, 3, 3, 3, 6, 2, 4, 7, 7, 3, 3, 7, 5, 3, 2, 6, 7, 3, 2, 5, 7, 3, 3, 4, 7, 4, 4, 5, 7, 4, 2, 8, 5, 3, 4, 8, 7, 4, 5, 7, 9, 3, 4, 7, 7, 2, 5, 9, 6, 4, 3, 8, 10, 4, 3, 9, 10, 4, 4, 6]

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

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