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A356190 as a simple table

n a(n)
1 2
2 7
3 11
4 17
5 23
6 29
7 31
8 -1
9 37
10 -1
11 53
12 61
13 59
14 71
15 79
16 89
17 -1
18 109
19 97
20 101
21 -1
22 -1
23 127
24 -1
25 137
26 151
27 149
28 157
29 -1
30 179
31 -1
32 191
33 -1
34 -1
35 211
36 -1
37 -1
38 223
39 233
40 -1
41 251
42 257
43 263
44 293
45 -1
46 -1
47 -1
48 -1
49 307
50 311
51 -1
52 -1
53 -1
54 331
55 349
56 347
57 367
58 373
59 379
60 389
61 409
62 -1
63 -1
64 419
65 -1
66 431
67 443

[2,7,11,17,23,29,31,-1,37,-1,53,61,59,71,79,89,-1,
 109,97,101,-1,-1,127,-1,137,151,149,157,-1,179,-1,
 191,-1,-1,211,-1,-1,223,233,-1,251,257,263,293,-1,
 -1,-1,-1,307,311,-1,-1,-1,331,349,347,367,373,379,
 389,409,-1,-1,419,-1,431,443]

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Last modified May 26 05:31 EDT 2024. Contains 372807 sequences. (Running on oeis4.)