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.

A108018 a(n) = the number of primes representable as the sum of some subset of the set of first n primes.

Table of values

n a(n)
1 1
2 3
3 4
4 5
5 9
6 12
7 16
8 19
9 25
10 31
11 37
12 43
13 51
14 59
15 66
16 75
17 84
18 95
19 103
20 115
21 127
22 137
23 150
24 162
25 177
26 191
27 205
28 218
29 233
30 250
31 267
32 282
33 299
34 319
35 338
36 359
37 376
38 399
39 421
40 440
41 461
42 481
43 508
44 531
45 556
46 578
47 602
48 629
49 653
50 683
51 707
52 737
53 765
54 793
55 824
56 853
57 883

List of values

[1, 3, 4, 5, 9, 12, 16, 19, 25, 31, 37, 43, 51, 59, 66, 75, 84, 95, 103, 115, 127, 137, 150, 162, 177, 191, 205, 218, 233, 250, 267, 282, 299, 319, 338, 359, 376, 399, 421, 440, 461, 481, 508, 531, 556, 578, 602, 629, 653, 683, 707, 737, 765, 793, 824, 853, 883]

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

Content is available under The OEIS End-User License Agreement.