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A028418 as a simple table

n a(n)
1 1
2 3
3 13
4 67
5 411
6 2911
7 23563
8 213543
9 2149927
10 23759791
11 286370151
12 3734929903
13 52455166063
14 788704078527
15 12648867695311
16 215433088624351
17 3884791172487903
18 73919882720901823
19 1480542628345939807
20 31128584449987511871
21 685635398619169059391

[1,3,13,67,411,2911,23563,213543,2149927,23759791,
 286370151,3734929903,52455166063,788704078527,
 12648867695311,215433088624351,3884791172487903,
 73919882720901823,1480542628345939807,
 31128584449987511871,685635398619169059391]

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Last modified April 16 03:20 EDT 2024. Contains 371696 sequences. (Running on oeis4.)