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A319283 as a simple table

n a(n)
0 1
1 2
2 3
3 6
4 17
5 54
6 153
7 552
8 2057
9 8394
10 35539
11 166926
12 856189
13 4674890
14 27358553
15 171129072
16 1141190303
17 8017021932
18 59365844491
19 461939618824 

[1,2,3,6,17,54,153,552,2057,8394,35539,166926,
 856189,4674890,27358553,171129072,1141190303,
 8017021932,59365844491,461939618824]

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Last modified April 24 11:21 EDT 2024. Contains 371936 sequences. (Running on oeis4.)