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.

A224218 Indices of XOR-positive triangular numbers. That is, numbers n such that triangular(n) XOR triangular(n+1) is a triangular number, where XOR is the bitwise logical XOR operator.

Table of values

n a(n)
1 0
2 12
3 18
4 24
5 40
6 86
7 102
8 177
9 333
10 357
11 628
12 665
13 669
14 689
15 840
16 845
17 860
18 861
19 1124
20 1185
21 1196
22 1206
23 1377
24 1418
25 1706
26 1890
27 1906
28 1956
29 2138
30 2204
31 2388
32 2524
33 2588
34 2843
35 2970
36 2994
37 3035
38 3107
39 3154
40 3234
41 3299
42 3606
43 3824
44 3854
45 4005
46 4021
47 4169
48 4185
49 4568
50 4580

List of values

[0, 12, 18, 24, 40, 86, 102, 177, 333, 357, 628, 665, 669, 689, 840, 845, 860, 861, 1124, 1185, 1196, 1206, 1377, 1418, 1706, 1890, 1906, 1956, 2138, 2204, 2388, 2524, 2588, 2843, 2970, 2994, 3035, 3107, 3154, 3234, 3299, 3606, 3824, 3854, 4005, 4021, 4169, 4185, 4568, 4580]