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.

A152603 a(1) = 1; thereafter, a(n) is always the smallest integer > a(n-1) not leading to a contradiction, such that any three consecutive digits in the sequence sum up to a prime.

Table of values

n a(n)
1 1
2 2
3 4
4 5
5 8
6 41
7 60
8 70
9 410
10 412
11 416
12 418
13 452
14 454
15 458
16 470
17 472
18 476
19 478
20 812
21 814
22 818
23 830
24 832
25 836
26 838
27 872
28 874
29 878
30 2101
31 2210
32 2300
33 2302
34 3002
35 3003
36 4011
37 5110
38 6101
39 6410
40 6500
41 7002
42 9020
43 9200
44 20020
45 30020
46 30021
47 40110

List of values

[1, 2, 4, 5, 8, 41, 60, 70, 410, 412, 416, 418, 452, 454, 458, 470, 472, 476, 478, 812, 814, 818, 830, 832, 836, 838, 872, 874, 878, 2101, 2210, 2300, 2302, 3002, 3003, 4011, 5110, 6101, 6410, 6500, 7002, 9020, 9200, 20020, 30020, 30021, 40110]