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A110530 as a simple table

n a(n)
0 1
1 1
2 3
3 13
4 66
5 380
6 2447
7 17424
8 135740
9 1146202
10 10409616
11 101031397
12 1042361261
13 11380543227
14 130980176993
15 1583726089859
16 20058575880505
17 265416510500487
18 3660581511822798
19 52511905732091815
20 782044494316086134

[1,1,3,13,66,380,2447,17424,135740,1146202,
 10409616,101031397,1042361261,11380543227,
 130980176993,1583726089859,20058575880505,
 265416510500487,3660581511822798,
 52511905732091815,782044494316086134]

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Last modified July 25 16:03 EDT 2021. Contains 346291 sequences. (Running on oeis4.)