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A333899 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 1
5 22
6 550
7 16700
8 703297
9 38135272
10 2584332084
11 214050246975
12 21269928579625
13 2497135296996934
14 341930210261762434
15 54008226638062039798
16 9746833030828647070625
17 1993080976749664740373600
18 458405276998431265342151848
19 117814680468332544208002721773

[1,0,0,1,1,22,550,16700,703297,38135272,
 2584332084,214050246975,21269928579625,
 2497135296996934,341930210261762434,
 54008226638062039798,9746833030828647070625,
 1993080976749664740373600,
 458405276998431265342151848,
 117814680468332544208002721773]

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Last modified December 1 01:37 EST 2021. Contains 349426 sequences. (Running on oeis4.)