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.

A046448 Squarefree nonprimes with property that the concatenation of the prime factors is a palindrome.

Table of values

n a(n)
1 1
2 39
3 69
4 119
5 129
6 159
7 219
8 249
9 259
10 329
11 339
12 403
13 429
14 469
15 669
16 679
17 795
18 1207
19 1309
20 1329
21 1533
22 1547
23 1589
24 1703
25 2319
26 2321
27 2359
28 2649
29 2701
30 3039
31 3421
32 3503
33 3629
34 3633
35 3639
36 3729
37 3899
38 4303
39 4607
40 4839
41 5289
42 5295
43 5565
44 5603
45 5739
46 6209

List of values

[1, 39, 69, 119, 129, 159, 219, 249, 259, 329, 339, 403, 429, 469, 669, 679, 795, 1207, 1309, 1329, 1533, 1547, 1589, 1703, 2319, 2321, 2359, 2649, 2701, 3039, 3421, 3503, 3629, 3633, 3639, 3729, 3899, 4303, 4607, 4839, 5289, 5295, 5565, 5603, 5739, 6209]

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

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