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A306038 as a simple table

n a(n)
0 1
1 2
2 3
3 5
4 12
5 34
6 122
7 482
8 2328
9 11640
10 71952
11 424368
12 3312240
13 21357504
14 217045488
15 1351338864
16 19990187520
17 89379824256
18 2631270916224
19 892036259712
20 507945420198144
21 -3068802187635456
22 142961233091051520
23 -1849617314640322560
24 55640352746480440320

[1,2,3,5,12,34,122,482,2328,11640,71952,424368,
 3312240,21357504,217045488,1351338864,19990187520,
 89379824256,2631270916224,892036259712,
 507945420198144,-3068802187635456,
 142961233091051520,-1849617314640322560,
 55640352746480440320]

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Last modified April 24 13:08 EDT 2024. Contains 371945 sequences. (Running on oeis4.)