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A203170 as a simple table

n a(n)
0 0
1 1
2 17
3 642
4 29203
5 1365539
6 64107780
7 3011403301
8 141469813301
9 6646055880582
10 312223061019703
11 14667837157106759
12 689076118833981960
13 32371909717271872585
14 1520790680382055836761
15 71444790066793903279242

[0,1,17,642,29203,1365539,64107780,3011403301,
 141469813301,6646055880582,312223061019703,
 14667837157106759,689076118833981960,
 32371909717271872585,1520790680382055836761,
 71444790066793903279242]

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Last modified December 11 18:34 EST 2019. Contains 329925 sequences. (Running on oeis4.)