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A275549 as a simple table

n a(n)
0 1
1 1
2 3
3 18
4 136
5 1625
6 23436
7 412972
8 8390656
9 193739769
10 5000050000
11 142656721086
12 4458051717120
13 151437584670385
14 5556003465485760
15 218946946471875000
16 9223372039002259456
17 413620131002462320337
18 19673204037747448432896
19 989209827833222327690890

[1,1,3,18,136,1625,23436,412972,8390656,193739769,
 5000050000,142656721086,4458051717120,
 151437584670385,5556003465485760,
 218946946471875000,9223372039002259456,
 413620131002462320337,19673204037747448432896,
 989209827833222327690890]

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Last modified August 14 04:19 EDT 2024. Contains 375146 sequences. (Running on oeis4.)