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.

A280967 Vampire numbers (definition 1) in binary: n has a nontrivial factorization using n's bits.

Table of values

n a(n)
1 159
2 175
3 287
4 303
5 315
6 318
7 319
8 343
9 350
10 351
11 375
12 567
13 574
14 575
15 591
16 603
17 606
18 623
19 627
20 630
21 636
22 638
23 679
24 686
25 687
26 699
27 700
28 702
29 735
30 750
31 763
32 765
33 1127
34 1134
35 1135
36 1148
37 1150
38 1167
39 1179
40 1182
41 1183
42 1203
43 1206
44 1212
45 1215
46 1239
47 1243
48 1246
49 1247
50 1251
51 1254
52 1260
53 1271
54 1272

List of values

[159, 175, 287, 303, 315, 318, 319, 343, 350, 351, 375, 567, 574, 575, 591, 603, 606, 623, 627, 630, 636, 638, 679, 686, 687, 699, 700, 702, 735, 750, 763, 765, 1127, 1134, 1135, 1148, 1150, 1167, 1179, 1182, 1183, 1203, 1206, 1212, 1215, 1239, 1243, 1246, 1247, 1251, 1254, 1260, 1271, 1272]