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A141351 as a simple table

n a(n)
0 1
1 2
2 3
3 6
4 15
5 43
6 133
7 430
8 1431
9 4863
10 16797
11 58787
12 208013
13 742901
14 2674441
15 9694846
16 35357671
17 129644791
18 477638701
19 1767263191
20 6564120421
21 24466267021
22 91482563641
23 343059613651
24 1289904147325

[1,2,3,6,15,43,133,430,1431,4863,16797,58787,
 208013,742901,2674441,9694846,35357671,129644791,
 477638701,1767263191,6564120421,24466267021,
 91482563641,343059613651,1289904147325]

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Last modified June 19 03:38 EDT 2021. Contains 345125 sequences. (Running on oeis4.)