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A174982 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 15
5 38
6 120
7 258
8 683
9 2116
10 4796
11 12800
12 39094
13 91412
14 245478
15 742376
16 1772851
17 4779936
18 14342766
19 34772193
20 94010374
21 280321572
22 687416534
23 1862299561
24 5524586198
25 13670204608
26 37092812772
27 109567253600
28 273104180926
29 741976123650
30 2183764222716

[1,1,3,8,15,38,120,258,683,2116,4796,12800,39094,
 91412,245478,742376,1772851,4779936,14342766,
 34772193,94010374,280321572,687416534,1862299561,
 5524586198,13670204608,37092812772,109567253600,
 273104180926,741976123650,2183764222716]

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Last modified June 3 08:54 EDT 2024. Contains 373057 sequences. (Running on oeis4.)