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.

A162304 Triangular numbers that contain exactly 3 different decimal digits.

Table of values

n a(n)
1 105
2 120
3 136
4 153
5 190
6 210
7 231
8 253
9 276
10 325
11 351
12 378
13 406
14 435
15 465
16 496
17 528
18 561
19 630
20 703
21 741
22 780
23 820
24 861
25 903
26 946
27 1081
28 1128
29 1176
30 1225
31 1431
32 1770
33 1891
34 2080
35 2278
36 2556
37 2628
38 2775
39 2926
40 3321
41 3403
42 3655
43 3828
44 4005
45 4465
46 4656
47 5253

List of values

[105, 120, 136, 153, 190, 210, 231, 253, 276, 325, 351, 378, 406, 435, 465, 496, 528, 561, 630, 703, 741, 780, 820, 861, 903, 946, 1081, 1128, 1176, 1225, 1431, 1770, 1891, 2080, 2278, 2556, 2628, 2775, 2926, 3321, 3403, 3655, 3828, 4005, 4465, 4656, 5253]

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

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