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A089846 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 13
5 35
6 100
7 296
8 903
9 2857
10 9274
11 30852
12 104784
13 362108
14 1269324
15 4502624
16 16130539
17 58271303
18 212001890
19 776027286
20 2855731796 

[1,1,2,5,13,35,100,296,903,2857,9274,30852,104784,
 362108,1269324,4502624,16130539,58271303,
 212001890,776027286,2855731796]

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Last modified April 19 06:44 EDT 2024. Contains 371782 sequences. (Running on oeis4.)