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A130905 as a simple table

n a(n)
0 1
1 1
2 3
3 9
4 39
5 195
6 1185
7 8295
8 66465
9 598185
10 5982795
11 65810745
12 789739335
13 10266611355
14 143732694105
15 2155990411575
16 34495848612225
17 586429426407825
18 10555729709800275
19 200558864486205225
20 4011177290378833575

[1,1,3,9,39,195,1185,8295,66465,598185,5982795,
 65810745,789739335,10266611355,143732694105,
 2155990411575,34495848612225,586429426407825,
 10555729709800275,200558864486205225,
 4011177290378833575]

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Last modified April 19 16:08 EDT 2024. Contains 371794 sequences. (Running on oeis4.)