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A102864 as a simple table

n a(n)
0 2
1 2
2 4
3 16
4 28
5 56
6 108
7 216
8 424
9 848
10 1684
11 3368
12 6712
13 13424
14 26808
15 53616
16 107152
17 214304
18 428460
19 856920
20 1713544
21 3427088 

[2,2,4,16,28,56,108,216,424,848,1684,3368,6712,
 13424,26808,53616,107152,214304,428460,856920,
 1713544,3427088]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)