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A128697 as a simple table

n a(n)
0 0
1 1
2 2
3 258
4 6819
5 397444
6 17174660
7 832905381
8 38655764742
9 1824449669638
10 85558387560263
11 4022147193262344
12 188906406088298760
13 8875457294194960201
14 416941824416535235082
15 19587673124144635235082
16 920198619736386114829803
17 43229838526402491973562764
18 2030880577900713476799525260
19 95408186647695095521364177901
20 4482153365649947417785489568526

[0,1,2,258,6819,397444,17174660,832905381,
 38655764742,1824449669638,85558387560263,
 4022147193262344,188906406088298760,
 8875457294194960201,416941824416535235082,
 19587673124144635235082,920198619736386114829803,
 43229838526402491973562764,
 2030880577900713476799525260,
 95408186647695095521364177901,
 4482153365649947417785489568526]

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Last modified February 20 11:50 EST 2020. Contains 332076 sequences. (Running on oeis4.)