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A186925 as a simple table

n a(n)
0 1
1 1
2 6
3 45
4 454
5 5775
6 88796
7 1602447
8 33213510
9 777665691
10 20302315252
11 584774029983
12 18422140045596
13 630132567760345
14 23257790717110392
15 921362075184792825
16 38994274473840538182
17 1755943506127367745795
18 83829045032101462204100
19 4229207755493569286374167

[1,1,6,45,454,5775,88796,1602447,33213510,
 777665691,20302315252,584774029983,18422140045596,
 630132567760345,23257790717110392,
 921362075184792825,38994274473840538182,
 1755943506127367745795,83829045032101462204100,
 4229207755493569286374167]

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)