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A186897 as a simple table

n a(n)
1 234
2 406
3 1692
4 5401
5 14437
6 49303
7 171877
8 608194
9 1974583
10 6828851
11 23697904
12 82511604
13 280821141
14 969113166
15 3356595204
16 11627225657
17 40028089405
18 138218574688
19 478039503452
20 1653233404522
21 5707628406749
22 19717537044734

[234,406,1692,5401,14437,49303,171877,608194,
 1974583,6828851,23697904,82511604,280821141,
 969113166,3356595204,11627225657,40028089405,
 138218574688,478039503452,1653233404522,
 5707628406749,19717537044734]

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Last modified April 13 11:50 EDT 2024. Contains 371640 sequences. (Running on oeis4.)