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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.

A256015 Triangle read by rows: n-th row contains all distinct primes which are representable as the sum of some subset of the set of first n primes.

Table of values

n a(n)
1 2
2 2
3 3
4 5
5 2
6 3
7 5
8 7
9 2
10 3
11 5
12 7
13 17
14 2
15 3
16 5
17 7
18 11
19 13
20 17
21 19
22 23
23 2
24 3
25 5
26 7
27 11
28 13
29 17
30 19
31 23
32 29
33 31
34 41
35 2
36 3
37 5
38 7
39 11
40 13
41 17
42 19
43 23
44 29
45 31
46 37
47 41
48 43
49 47
50 53
51 2
52 3
53 5
54 7
55 11
56 13
57 17
58 19
59 23
60 29
61 31
62 37
63 41
64 43
65 47
66 53
67 59
68 61
69 67

List of values

[2, 2, 3, 5, 2, 3, 5, 7, 2, 3, 5, 7, 17, 2, 3, 5, 7, 11, 13, 17, 19, 23, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 41, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67]

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

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