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A020033 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 3
5 12
6 62
7 393
8 2862
9 23714
10 220205
11 2264965
12 25561752
13 314044379
14 4172303889
15 59604341272
16 911094930877
17 14837831731420
18 256482519928831
19 4689966078698629
20 90449345803473559
21 1834829586299035049

[1,0,0,1,3,12,62,393,2862,23714,220205,2264965,
 25561752,314044379,4172303889,59604341272,
 911094930877,14837831731420,256482519928831,
 4689966078698629,90449345803473559,
 1834829586299035049]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)