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A218002 as a simple table

n a(n)
0 1
1 0
2 1
3 2
4 3
5 44
6 55
7 1434
8 3913
9 39752
10 392481
11 5109290
12 34683451
13 914698212
14 5777487703
15 91494090674
16 1504751645265
17 31764834185744
18 379862450767873
19 12634073744624082
20 132945783064464691
21 2753044719709341980
22 64135578414076991031
23 1822831113987975441482

[1,0,1,2,3,44,55,1434,3913,39752,392481,5109290,
 34683451,914698212,5777487703,91494090674,
 1504751645265,31764834185744,379862450767873,
 12634073744624082,132945783064464691,
 2753044719709341980,64135578414076991031,
 1822831113987975441482]

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Last modified December 15 09:05 EST 2019. Contains 329995 sequences. (Running on oeis4.)