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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.

A224344 Number T(n,k) of compositions of n using exactly k primes (counted with multiplicity); triangle T(n,k), n>=0, 0<=k<=floor(n/2), read by rows.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 3
6 2
7 5
8 1
9 3
10 8
11 5
12 5
13 13
14 13
15 1
16 7
17 23
18 27
19 7
20 11
21 39
22 52
23 25
24 1
25 17
26 65
27 99
28 66
29 9
30 27
31 106
32 186
33 151
34 41
35 1
36 40
37 177
38 340
39 323
40 133
41 11
42 61
43 293
44 608
45 666
46 358
47 61
48 1
49 92
50 482
51 1076
52 1330
53 867
54 236
55 13
56 142
57 781
58 1894
59 2581
60 1971
61 737
62 85
63 1

List of values

[1, 1, 1, 1, 1, 3, 2, 5, 1, 3, 8, 5, 5, 13, 13, 1, 7, 23, 27, 7, 11, 39, 52, 25, 1, 17, 65, 99, 66, 9, 27, 106, 186, 151, 41, 1, 40, 177, 340, 323, 133, 11, 61, 293, 608, 666, 358, 61, 1, 92, 482, 1076, 1330, 867, 236, 13, 142, 781, 1894, 2581, 1971, 737, 85, 1]