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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.

A244248 Semiprimes whose binary representation, read in decimal, is prime.

Table of values

n a(n)
1 185
2 247
3 253
4 295
5 329
6 355
7 453
8 471
9 533
10 565
11 583
12 671
13 689
14 703
15 755
16 781
17 785
18 815
19 841
20 989
21 1037
22 1099
23 1121
24 1159
25 1189
26 1207
27 1219
28 1329
29 1403
30 1441
31 1473
32 1541
33 1555
34 1643
35 1661
36 1703
37 1751
38 1793
39 1797
40 1819
41 1821
42 1853
43 1921
44 1941
45 1957
46 2123
47 2189

List of values

[185, 247, 253, 295, 329, 355, 453, 471, 533, 565, 583, 671, 689, 703, 755, 781, 785, 815, 841, 989, 1037, 1099, 1121, 1159, 1189, 1207, 1219, 1329, 1403, 1441, 1473, 1541, 1555, 1643, 1661, 1703, 1751, 1793, 1797, 1819, 1821, 1853, 1921, 1941, 1957, 2123, 2189]

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

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