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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.

A336640 a(n) is the minimal value of Sum x_i when Sum binomial(x_i, 2) = n.

Table of values

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

List of values

[0, 2, 4, 3, 5, 7, 4, 6, 8, 7, 5, 7, 8, 8, 10, 6, 8, 10, 9, 11, 10, 7, 9, 11, 10, 11, 13, 11, 8, 10, 12, 11, 13, 15, 12, 14, 9, 11, 13, 12, 14, 16, 13, 14, 16, 10, 12, 14, 13, 15, 17, 14, 16, 18, 17, 11, 13, 15, 14, 16, 16, 15, 17, 19, 17, 16, 12, 14, 16, 15, 17]

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

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