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A283799 as a simple table

n a(n)
0 1
1 2
2 5
3 12
4 36
5 90
6 286
7 728
8 2380
9 6120
10 20349
11 52668
12 177100
13 460460
14 1560780
15 4071600
16 13884156
17 36312408
18 124403620
19 326023280
20 1121099408
21 2942885946
22 10150595910
23 26681566392
24 92263734836
25 242799302200
26 841392966470
27 2216352204360
28 7694644696200

[1,2,5,12,36,90,286,728,2380,6120,20349,52668,
 177100,460460,1560780,4071600,13884156,36312408,
 124403620,326023280,1121099408,2942885946,
 10150595910,26681566392,92263734836,242799302200,
 841392966470,2216352204360,7694644696200]

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Last modified April 24 07:44 EDT 2024. Contains 371922 sequences. (Running on oeis4.)