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A153370 as a simple table

n a(n)
1 5
2 10
3 18
4 36
5 66
6 132
7 244
8 488
9 906
10 1812
11 3372
12 6744
13 12566
14 25132
15 46860
16 93720
17 174810
18 349620
19 652252
20 1304504
21 2433942
22 4867884
23 9083004
24 18166008
25 33897050
26 67794100
27 126503148
28 253006296
29 472111446
30 944222892
31 1761934444
32 3523868888

[5,10,18,36,66,132,244,488,906,1812,3372,6744,
 12566,25132,46860,93720,174810,349620,652252,
 1304504,2433942,4867884,9083004,18166008,33897050,
 67794100,126503148,253006296,472111446,944222892,
 1761934444,3523868888]

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Last modified February 24 16:04 EST 2020. Contains 332209 sequences. (Running on oeis4.)