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.

A070828 Sum of prime factors of Catalan numbers A000108(n), n>=2, with n=0 and n=1 terms added.

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 9
5 12
6 18
7 27
8 31
9 43
10 53
11 58
12 70
13 73
14 76
15 99
16 115
17 123
18 118
19 148
20 156
21 186
22 208
23 212
24 251
25 252
26 265
27 309
28 298
29 312
30 342
31 395
32 396
33 397
34 454
35 472
36 508
37 562
38 561
39 570
40 610
41 612
42 654
43 663
44 686
45 752
46 727

List of values

[1, 1, 2, 5, 9, 12, 18, 27, 31, 43, 53, 58, 70, 73, 76, 99, 115, 123, 118, 148, 156, 186, 208, 212, 251, 252, 265, 309, 298, 312, 342, 395, 396, 397, 454, 472, 508, 562, 561, 570, 610, 612, 654, 663, 686, 752, 727]