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A122420 as a simple table

n a(n)
0 1
1 0
2 1
3 10
4 120
5 1778
6 31685
7 661940
8 15882128
9 430607370
10 13022755068
11 434697574538
12 15875944361864
13 629756003982336
14 26963278837704185
15 1239382820431888898
16 60875147436141987437
17 3181961834442383306068

[1,0,1,10,120,1778,31685,661940,15882128,
 430607370,13022755068,434697574538,15875944361864,
 629756003982336,26963278837704185,
 1239382820431888898,60875147436141987437,
 3181961834442383306068]

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Last modified April 18 11:52 EDT 2024. Contains 371779 sequences. (Running on oeis4.)