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.

A349120 Primitive Pythagorean triples [a, b, c] in lexicographic order with a < b < c such that [w(a), w(b), w(c)] is also a primitive Pythagorean triple, where w(n) is the binary weight of n.

Table of values

n a(n)
1 11
2 60
3 61
4 19
5 180
6 181
7 25
8 312
9 313
10 35
11 612
12 613
13 41
14 840
15 841
16 47
17 1104
18 1105
19 49
20 1200
21 1201
22 52
23 165
24 173
25 57
26 176
27 185
28 67
29 2244
30 2245
31 97
32 4704
33 4705
34 104
35 153
36 185
37 105
38 208
39 233
40 105
41 608
42 617
43 131
44 8580
45 8581
46 133
47 156
48 205
49 145
50 408
51 433
52 145
53 10512
54 10513
55 165
56 532
57 557
58 181
59 16380
60 16381
61 193
62 18624
63 18625

List of values

[11, 60, 61, 19, 180, 181, 25, 312, 313, 35, 612, 613, 41, 840, 841, 47, 1104, 1105, 49, 1200, 1201, 52, 165, 173, 57, 176, 185, 67, 2244, 2245, 97, 4704, 4705, 104, 153, 185, 105, 208, 233, 105, 608, 617, 131, 8580, 8581, 133, 156, 205, 145, 408, 433, 145, 10512, 10513, 165, 532, 557, 181, 16380, 16381, 193, 18624, 18625]