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.

A173638 The n-th semiprime plus n gives a palindrome in base 10.

Table of values

n a(n)
1 1
2 2
3 11
4 17
5 20
6 23
7 25
8 35
9 40
10 48
11 53
12 59
13 69
14 86
15 94
16 100
17 128
18 133
19 138
20 141
21 145
22 194
23 211
24 216
25 224
26 232
27 282
28 326
29 450
30 615
31 665
32 824
33 876
34 929
35 1171
36 1197
37 1267
38 1290
39 1293
40 1450
41 1498
42 1520
43 1566
44 1655
45 1790
46 1898
47 2248
48 2313
49 2624
50 2786
51 2826
52 2849
53 2912
54 3058
55 3082
56 3098
57 3270
58 3290
59 3408
60 3586
61 3610
62 3672
63 3792
64 3912
65 3945
66 3982
67 4000

List of values

[1, 2, 11, 17, 20, 23, 25, 35, 40, 48, 53, 59, 69, 86, 94, 100, 128, 133, 138, 141, 145, 194, 211, 216, 224, 232, 282, 326, 450, 615, 665, 824, 876, 929, 1171, 1197, 1267, 1290, 1293, 1450, 1498, 1520, 1566, 1655, 1790, 1898, 2248, 2313, 2624, 2786, 2826, 2849, 2912, 3058, 3082, 3098, 3270, 3290, 3408, 3586, 3610, 3672, 3792, 3912, 3945, 3982, 4000]