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A070897 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 2
6 4
7 8
8 36
9 40
10 49
11 126
12 121
13 440
14 2809
15 11395
16 32761
17 132183
18 881721
19 3015500
20 19642624
21 106493895
22 249987721
23 1257922092
24 4609187881
25 29262161844
26 189192811369
27 1068996265025
28 7388339422500
29 67416357342087
30 465724670229025
31 1979950199225010

[1,1,1,1,2,4,8,36,40,49,126,121,440,2809,11395,
 32761,132183,881721,3015500,19642624,106493895,
 249987721,1257922092,4609187881,29262161844,
 189192811369,1068996265025,7388339422500,
 67416357342087,465724670229025,1979950199225010]

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Last modified April 23 13:04 EDT 2024. Contains 371913 sequences. (Running on oeis4.)