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A003119 as a simple table

n a(n)
0 1
1 4
2 12
3 36
4 108
5 324
6 948
7 2772
8 8076
9 23508
10 67980
11 196548
12 566820
13 1633956
14 4697412
15 13501492
16 38742652
17 111146820
18 318390684
19 911904996
20 2608952940
21 7463042916
22 21328259716

[1,4,12,36,108,324,948,2772,8076,23508,67980,
 196548,566820,1633956,4697412,13501492,38742652,
 111146820,318390684,911904996,2608952940,
 7463042916,21328259716]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)