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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.

A051809 Numbers with nonzero multiplicative digital root 7.

Table of values

n a(n)
1 7
2 17
3 70
4 71
5 107
6 117
7 170
8 171
9 257
10 275
11 527
12 572
13 700
14 701
15 710
16 711
17 725
18 752
19 1007
20 1017
21 1070
22 1071
23 1107
24 1117
25 1170
26 1171
27 1257
28 1275
29 1527
30 1572
31 1700
32 1701
33 1710
34 1711
35 1725
36 1752
37 2057
38 2075
39 2157
40 2175

List of values

[7, 17, 70, 71, 107, 117, 170, 171, 257, 275, 527, 572, 700, 701, 710, 711, 725, 752, 1007, 1017, 1070, 1071, 1107, 1117, 1170, 1171, 1257, 1275, 1527, 1572, 1700, 1701, 1710, 1711, 1725, 1752, 2057, 2075, 2157, 2175]

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

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