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A193058 as a simple table

n a(n)
1 1
2 2
3 4
4 11
5 35
6 132
7 575
8 2666
9 13366
10 75702
11 440671
12 2729413
13 18532000
14 128377424
15 932516735
16 7310526099
17 58152253376
18 481264505644
19 4246485063225
20 37932739729104
21 350480039796036
22 3421582485716585
23 33772551636563403

[1,2,4,11,35,132,575,2666,13366,75702,440671,
 2729413,18532000,128377424,932516735,7310526099,
 58152253376,481264505644,4246485063225,
 37932739729104,350480039796036,3421582485716585,
 33772551636563403]

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Last modified May 24 15:38 EDT 2013. Contains 225624 sequences.