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A214224 as a simple table

n a(n)
1 1
2 2
3 12
4 128
5 1920
6 37056
7 874496
8 24395776
9 785387520
10 28658483200
11 1168842842112
12 52692107132928
13 2601710674640896
14 139635670319366144
15 8094064830515773440
16 503939620849307353088
17 33539757103898142179328
18 2376284247629812872511488
19 178564437032337539449487360 

[1,2,12,128,1920,37056,874496,24395776,785387520,
 28658483200,1168842842112,52692107132928,
 2601710674640896,139635670319366144,
 8094064830515773440,503939620849307353088,
 33539757103898142179328,2376284247629812872511488,
 178564437032337539449487360]

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Last modified June 4 10:10 EDT 2024. Contains 373092 sequences. (Running on oeis4.)