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.

A290018 Numbers with exactly five Brazilian representations: bases 1 < b_1 < b_2 < b_3 < b_4 < b_5 < n-1 such that n is a repdigit in base b_i.

Table of values

n a(n)
1 60
2 80
3 84
4 96
5 108
6 126
7 140
8 150
9 156
10 160
11 198
12 200
13 204
14 220
15 224
16 234
17 255
18 260
19 273
20 276
21 294
22 308
23 315
24 340
25 342
26 348
27 350
28 352
29 372
30 392
31 414
32 416
33 460
34 476
35 486
36 490
37 492
38 495
39 500
40 516
41 522
42 525
43 544
44 550
45 558
46 564
47 572
48 580
49 608
50 620
51 636
52 644
53 675
54 693
55 708
56 726
57 735
58 736

List of values

[60, 80, 84, 96, 108, 126, 140, 150, 156, 160, 198, 200, 204, 220, 224, 234, 255, 260, 273, 276, 294, 308, 315, 340, 342, 348, 350, 352, 372, 392, 414, 416, 460, 476, 486, 490, 492, 495, 500, 516, 522, 525, 544, 550, 558, 564, 572, 580, 608, 620, 636, 644, 675, 693, 708, 726, 735, 736]

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

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