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.

A007621 Impractical numbers: even abundant numbers (A173490) that are not practical(2) (A007620).

Table of values

n a(n)
1 70
2 102
3 114
4 138
5 174
6 186
7 222
8 246
9 258
10 282
11 318
12 350
13 354
14 366
15 372
16 402
17 426
18 438
19 444
20 474
21 490
22 492
23 498
24 516
25 534
26 550
27 564
28 572
29 582
30 606
31 618
32 636
33 642
34 650
35 654
36 678
37 708
38 732
39 738
40 748
41 762
42 770
43 774
44 786
45 804
46 822
47 834
48 836
49 846
50 852
51 876
52 894

List of values

[70, 102, 114, 138, 174, 186, 222, 246, 258, 282, 318, 350, 354, 366, 372, 402, 426, 438, 444, 474, 490, 492, 498, 516, 534, 550, 564, 572, 582, 606, 618, 636, 642, 650, 654, 678, 708, 732, 738, 748, 762, 770, 774, 786, 804, 822, 834, 836, 846, 852, 876, 894]