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A235759 as a simple table

n a(n)
1 48
2 216
3 977
4 3900
5 15197
6 55816
7 199720
8 691634
9 2344746
10 7785110
11 25435107
12 81902482
13 260560751
14 820159066
15 2558049098
16 7914489044
17 24315115380
18 74237856204
19 225414249637
20 681094975856
21 2048957867649
22 6139801922404

[48,216,977,3900,15197,55816,199720,691634,
 2344746,7785110,25435107,81902482,260560751,
 820159066,2558049098,7914489044,24315115380,
 74237856204,225414249637,681094975856,
 2048957867649,6139801922404]

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Last modified December 8 05:44 EST 2021. Contains 349590 sequences. (Running on oeis4.)