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A019008 as a simple table

n a(n)
2 3
3 13
4 43
5 208
6 956
7 4847
8 26763
9 164223
10 1086338
11 7464818
12 51665398
13 355657152
14 2432250933
15 16587686917
16 113304847898 

[3,13,43,208,956,4847,26763,164223,1086338,
 7464818,51665398,355657152,2432250933,16587686917,
 113304847898]

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Last modified March 24 10:42 EDT 2023. Contains 361479 sequences. (Running on oeis4.)