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.

A187828 Partition the sequence of consecutive primes into groups so that the absolute value of the alternating sum (-1)^n (An) with n = 0,....m in each group is prime.

Table of values

n a(n)
1 3
2 19
3 37
4 53
5 71
6 109
7 149
8 211
9 251
10 277
11 307
12 359
13 397
14 449
15 479
16 521
17 593
18 641
19 709
20 769
21 823
22 859
23 919
24 1009
25 1033
26 1087
27 1171
28 1217
29 1277
30 1321
31 1367
32 1399
33 1459
34 1549
35 1609
36 1637
37 1693
38 1747
39 1879
40 1973
41 2039
42 2099
43 2213
44 2341
45 2399
46 2437
47 2531
48 2663
49 2777
50 2879
51 2939
52 3061
53 3251
54 3433

List of values

[3, 19, 37, 53, 71, 109, 149, 211, 251, 277, 307, 359, 397, 449, 479, 521, 593, 641, 709, 769, 823, 859, 919, 1009, 1033, 1087, 1171, 1217, 1277, 1321, 1367, 1399, 1459, 1549, 1609, 1637, 1693, 1747, 1879, 1973, 2039, 2099, 2213, 2341, 2399, 2437, 2531, 2663, 2777, 2879, 2939, 3061, 3251, 3433]