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A121870 as a simple table

n a(n)
0 1
1 1
2 2
3 9
4 61
5 554
6 6565
7 96677
8 1716730
9 36072181
10 881242577
11 24674241834
12 783024550969
13 27896201305769
14 1106485798248706
15 48517267642373105
16 2337333266369553253
17 123040664089658462650
18 7043260281573138384701
19 436533086101058798529933

[1,1,2,9,61,554,6565,96677,1716730,36072181,
 881242577,24674241834,783024550969,27896201305769,
 1106485798248706,48517267642373105,
 2337333266369553253,123040664089658462650,
 7043260281573138384701,436533086101058798529933]

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Last modified April 25 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)