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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.

A294933 Compound filter related to base-3 expansion of the exponents in prime factorization of n: a(n) = P(A294932(n), A294931(n)), where P(n,k) is sequence A000027 used as a pairing function.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 2
6 7
7 2
8 4
9 3
10 7
11 2
12 5
13 2
14 7
15 7
16 16
17 2
18 5
19 2
20 5
21 7
22 7
23 2
24 16
25 3
26 7
27 4
28 5
29 2
30 29
31 2
32 8
33 7
34 7
35 7
36 10
37 2
38 7
39 7
40 16
41 2
42 29
43 2
44 5
45 5
46 7
47 2
48 67
49 3
50 5
51 7
52 5
53 2
54 16
55 7
56 16
57 7
58 7
59 2
60 12
61 2
62 7
63 5
64 6
65 7
66 29
67 2
68 5
69 7
70 29
71 2
72 8
73 2
74 7
75 5
76 5
77 7
78 29
79 2
80 67
81 16
82 7
83 2
84 12
85 7
86 7
87 7
88 16
89 2
90 12
91 7
92 5
93 7
94 7
95 7
96 23
97 2
98 5
99 5
100 10
101 2
102 29
103 2
104 16
105 29
106 7
107 2
108 8
109 2
110 29
111 7
112 67

List of values

[1, 2, 2, 3, 2, 7, 2, 4, 3, 7, 2, 5, 2, 7, 7, 16, 2, 5, 2, 5, 7, 7, 2, 16, 3, 7, 4, 5, 2, 29, 2, 8, 7, 7, 7, 10, 2, 7, 7, 16, 2, 29, 2, 5, 5, 7, 2, 67, 3, 5, 7, 5, 2, 16, 7, 16, 7, 7, 2, 12, 2, 7, 5, 6, 7, 29, 2, 5, 7, 29, 2, 8, 2, 7, 5, 5, 7, 29, 2, 67, 16, 7, 2, 12, 7, 7, 7, 16, 2, 12, 7, 5, 7, 7, 7, 23, 2, 5, 5, 10, 2, 29, 2, 16, 29, 7, 2, 8, 2, 29, 7, 67]

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