cp's OEIS Frontend

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.

A280640 Numbers k such that k^3 has an odd number of digits and the middle digit is 0.

Table of values

n a(n)
1 0
2 30
3 40
4 42
5 100
6 101
7 115
8 116
9 123
10 126
11 135
12 163
13 164
14 171
15 199
16 200
17 201
18 214
19 468
20 479
21 487
22 498
23 500
24 502
25 513
26 520
27 525
28 543
29 557
30 562
31 564
32 575
33 576
34 577
35 578
36 579
37 585
38 596
39 600
40 615
41 623
42 642
43 656
44 661
45 666
46 690
47 695
48 697
49 700
50 705
51 709
52 717
53 721

List of values

[0, 30, 40, 42, 100, 101, 115, 116, 123, 126, 135, 163, 164, 171, 199, 200, 201, 214, 468, 479, 487, 498, 500, 502, 513, 520, 525, 543, 557, 562, 564, 575, 576, 577, 578, 579, 585, 596, 600, 615, 623, 642, 656, 661, 666, 690, 695, 697, 700, 705, 709, 717, 721]