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A171842 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 9
5 21
6 50
7 120
8 289
9 697
10 1682
11 4060
12 9801
13 23661
14 57122
15 137904
16 332929
17 803761
18 1940450
19 4684660
20 11309769
21 27304197
22 65918162
23 159140520
24 384199201
25 927538921
26 2239277042
27 5406093004
28 13051463049
29 31509019101
30 76069501250
31 183648021600
32 443365544449
33 1070379110497

[1,1,2,4,9,21,50,120,289,697,1682,4060,9801,23661,
 57122,137904,332929,803761,1940450,4684660,
 11309769,27304197,65918162,159140520,384199201,
 927538921,2239277042,5406093004,13051463049,
 31509019101,76069501250,183648021600,443365544449,
 1070379110497]

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Last modified April 30 02:11 EDT 2024. Contains 372118 sequences. (Running on oeis4.)