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A218817 as a simple table

n a(n)
0 0
1 1
2 6
3 42
4 352
5 3470
6 39468
7 509544
8 7367232
9 117981792
10 2073609120
11 39690563616
12 821945839680
13 18312215714832
14 436766423241120
15 11104557643877760
16 299811706265604096
17 8566939116183215232
18 258298187497129564416
19 8195130059917806607104
20 272936837532680503188480

[0,1,6,42,352,3470,39468,509544,7367232,117981792,
 2073609120,39690563616,821945839680,
 18312215714832,436766423241120,11104557643877760,
 299811706265604096,8566939116183215232,
 258298187497129564416,8195130059917806607104,
 272936837532680503188480]

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)