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.

A255744 a(1) = 1; for n > 1, a(n) = 10*9^(A000120(n-1)-1).

Table of values

n a(n)
1 1
2 10
3 10
4 90
5 10
6 90
7 90
8 810
9 10
10 90
11 90
12 810
13 90
14 810
15 810
16 7290
17 10
18 90
19 90
20 810
21 90
22 810
23 810
24 7290
25 90
26 810
27 810
28 7290
29 810
30 7290
31 7290
32 65610
33 10
34 90
35 90
36 810
37 90
38 810
39 810
40 7290
41 90
42 810
43 810
44 7290
45 810
46 7290
47 7290
48 65610
49 90
50 810
51 810
52 7290
53 810
54 7290

List of values

[1, 10, 10, 90, 10, 90, 90, 810, 10, 90, 90, 810, 90, 810, 810, 7290, 10, 90, 90, 810, 90, 810, 810, 7290, 90, 810, 810, 7290, 810, 7290, 7290, 65610, 10, 90, 90, 810, 90, 810, 810, 7290, 90, 810, 810, 7290, 810, 7290, 7290, 65610, 90, 810, 810, 7290, 810, 7290]