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.

A084021 Product of n and its 9's complement.

Table of values

n a(n)
0 0
1 8
2 14
3 18
4 20
5 20
6 18
7 14
8 8
9 0
10 890
11 968
12 1044
13 1118
14 1190
15 1260
16 1328
17 1394
18 1458
19 1520
20 1580
21 1638
22 1694
23 1748
24 1800
25 1850
26 1898
27 1944
28 1988
29 2030
30 2070
31 2108
32 2144
33 2178
34 2210
35 2240
36 2268
37 2294
38 2318
39 2340
40 2360
41 2378
42 2394
43 2408
44 2420
45 2430
46 2438

List of values

[0, 8, 14, 18, 20, 20, 18, 14, 8, 0, 890, 968, 1044, 1118, 1190, 1260, 1328, 1394, 1458, 1520, 1580, 1638, 1694, 1748, 1800, 1850, 1898, 1944, 1988, 2030, 2070, 2108, 2144, 2178, 2210, 2240, 2268, 2294, 2318, 2340, 2360, 2378, 2394, 2408, 2420, 2430, 2438]

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

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