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A159036 as a simple table

n a(n)
0 0
1 1
2 4
3 13
4 38
5 108
6 306
7 868
8 2464
9 6996
10 19864
11 56400
12 160136
13 454672
14 1290944
15 3665360
16 10407008
17 29548480
18 83896608
19 238206528
20 676336640
21 1920313664
22 5452321152
23 15480703232
24 43954155648
25 124798451968
26 354338591744
27 1006068870400

[0,1,4,13,38,108,306,868,2464,6996,19864,56400,
 160136,454672,1290944,3665360,10407008,29548480,
 83896608,238206528,676336640,1920313664,
 5452321152,15480703232,43954155648,124798451968,
 354338591744,1006068870400]

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)