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.

A123928 Numbers k such that the sum of the first k primes with the final digit 1 is prime (the number of consecutive prime numbers in A030430 that should be added to obtain A129077(x)).

Table of values

n a(n)
1 1
2 3
3 11
4 27
5 29
6 31
7 33
8 49
9 73
10 77
11 79
12 123
13 149
14 157
15 167
16 169
17 189
18 207
19 211
20 219
21 223
22 227
23 241
24 261
25 313
26 319
27 323
28 329
29 333
30 357
31 359
32 417
33 419
34 423
35 441
36 463
37 477
38 491
39 499
40 513
41 517
42 553
43 559
44 573
45 637
46 667
47 707
48 709
49 711
50 729
51 747
52 757
53 777
54 813
55 893

List of values

[1, 3, 11, 27, 29, 31, 33, 49, 73, 77, 79, 123, 149, 157, 167, 169, 189, 207, 211, 219, 223, 227, 241, 261, 313, 319, 323, 329, 333, 357, 359, 417, 419, 423, 441, 463, 477, 491, 499, 513, 517, 553, 559, 573, 637, 667, 707, 709, 711, 729, 747, 757, 777, 813, 893]

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

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