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A114900 as a simple table

n a(n)
0 2
1 4
2 8
3 24
4 60
5 152
6 400
7 1032
8 2656
9 6876
10 17776
11 45912
12 118664
13 306680
14 792480
15 2047984
16 5292564
17 13677160
18 35345112
19 91340568
20 236046088
21 610000528
22 1576390448
23 4073776744
24 10527631456
25 27205966108
26 70306845872
27 181690021616
28 469531293752
29 1213383282936

[2,4,8,24,60,152,400,1032,2656,6876,17776,45912,
 118664,306680,792480,2047984,5292564,13677160,
 35345112,91340568,236046088,610000528,1576390448,
 4073776744,10527631456,27205966108,70306845872,
 181690021616,469531293752,1213383282936]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)