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A331713 as a simple table

n a(n)
1 1
2 3
3 7
4 18
5 21
6 147
7 77
8 1119
9 2270
10 12273
11 1089
12 464200
13 4229
14 4148223
15 32941976
16 159812905
17 66153
18 10211281004
19 263321
20 205923976532
21 2439257062679
22 3086915165084
23 4199061
24 1526043270802300
25 311419986358517
26 4817701809545446
27 621665561741298232
28 1898993198795136209

[1,3,7,18,21,147,77,1119,2270,12273,1089,464200,
 4229,4148223,32941976,159812905,66153,10211281004,
 263321,205923976532,2439257062679,3086915165084,
 4199061,1526043270802300,311419986358517,
 4817701809545446,621665561741298232,
 1898993198795136209]

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Last modified October 18 19:31 EDT 2021. Contains 348069 sequences. (Running on oeis4.)