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A228330 as a simple table

n a(n)
0 1
1 20
2 362
3 6504
4 114686
5 1992536
6 34231540
7 583027920
8 9862508790
9 165918037560
10 2778642667020
11 46358257249200
12 770951008563372
13 12785838603285104
14 211540243555702376
15 3492587812271418784
16 57557091526140668070
17 946970607665938615032
18 15557339429900195819164
19 255246113991506558429936

[1,20,362,6504,114686,1992536,34231540,583027920,
 9862508790,165918037560,2778642667020,
 46358257249200,770951008563372,12785838603285104,
 211540243555702376,3492587812271418784,
 57557091526140668070,946970607665938615032,
 15557339429900195819164,255246113991506558429936]

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)