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A171733 as a simple table

n a(n)
0 -1
1 1
2 1
3 7
4 31
5 41
6 137
7 151
8 391
9 409
10 889
11 911
12 1751
13 1777
14 3121
15 3151
16 5167
17 5201
18 8081
19 8119
20 12079
21 12121
22 17401
23 17447
24 24311
25 24361
26 33097
27 33151
28 44071
29 44129
30 57569
31 57631
32 73951
33 74017
34 93601
35 93671
36 116927
37 117001
38 144361
39 144439
40 176359
41 176441
42 213401
43 213487
44 255991

[-1,1,1,7,31,41,137,151,391,409,889,911,1751,1777,
 3121,3151,5167,5201,8081,8119,12079,12121,17401,
 17447,24311,24361,33097,33151,44071,44129,57569,
 57631,73951,74017,93601,93671,116927,117001,
 144361,144439,176359,176441,213401,213487,255991]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)