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A034202 as a simple table

n a(n)
1 0
2 0
3 1
4 56
5 1326
6 19735
7 221778
8 2074059
9 16957301
10 124727148
11 840130123
12 5244256701
13 30596969639
14 167941891447
15 871758267397
16 4298158203818
17 20204102328683
18 90841311196884
19 391801985882846
20 1625205683251931
21 6498532182528941

[0,0,1,56,1326,19735,221778,2074059,16957301,
 124727148,840130123,5244256701,30596969639,
 167941891447,871758267397,4298158203818,
 20204102328683,90841311196884,391801985882846,
 1625205683251931,6498532182528941]

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Last modified April 24 02:46 EDT 2024. Contains 371917 sequences. (Running on oeis4.)