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.

A007960 Positive numbers k with the property that some permutation of the digits of k is a triangular number.

Table of values

n a(n)
1 1
2 3
3 6
4 10
5 12
6 15
7 19
8 21
9 28
10 30
11 36
12 45
13 51
14 54
15 55
16 60
17 63
18 66
19 78
20 82
21 87
22 91
23 100
24 102
25 105
26 109
27 117
28 120
29 123
30 132
31 135
32 136
33 147
34 150
35 153
36 156
37 163
38 165
39 168
40 171
41 174
42 186
43 190
44 201
45 208
46 210
47 213
48 231
49 235
50 253
51 258
52 267
53 276
54 280
55 285
56 300
57 306
58 307

List of values

[1, 3, 6, 10, 12, 15, 19, 21, 28, 30, 36, 45, 51, 54, 55, 60, 63, 66, 78, 82, 87, 91, 100, 102, 105, 109, 117, 120, 123, 132, 135, 136, 147, 150, 153, 156, 163, 165, 168, 171, 174, 186, 190, 201, 208, 210, 213, 231, 235, 253, 258, 267, 276, 280, 285, 300, 306, 307]

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

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