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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.

A154561 Primes resulting from (sum of digits of k) + (sum of digits of prime(k)) as k runs through the positive integers.

Table of values

n a(n)
1 3
2 5
3 11
4 7
5 13
6 17
7 23
8 13
9 23
10 23
11 13
12 17
13 23
14 29
15 19
16 17
17 29
18 23
19 17
20 19
21 23
22 29
23 23
24 19
25 31
26 23
27 17
28 19
29 29
30 31
31 31
32 23
33 11
34 19
35 19
36 17
37 19
38 23
39 17
40 17
41 17
42 23
43 29
44 31
45 23
46 29
47 23
48 13
49 19
50 19
51 31
52 23
53 23
54 17
55 11
56 31
57 23
58 13
59 23
60 29
61 23
62 29
63 29
64 19
65 23
66 31
67 37
68 29
69 37
70 17

List of values

[3, 5, 11, 7, 13, 17, 23, 13, 23, 23, 13, 17, 23, 29, 19, 17, 29, 23, 17, 19, 23, 29, 23, 19, 31, 23, 17, 19, 29, 31, 31, 23, 11, 19, 19, 17, 19, 23, 17, 17, 17, 23, 29, 31, 23, 29, 23, 13, 19, 19, 31, 23, 23, 17, 11, 31, 23, 13, 23, 29, 23, 29, 29, 19, 23, 31, 37, 29, 37, 17]

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

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