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A153364 as a simple table

n a(n)
1 4
2 8
3 14
4 28
5 50
6 100
7 180
8 360
9 650
10 1300
11 2350
12 4700
13 8500
14 17000
15 30750
16 61500
17 111250
18 222500
19 402500
20 805000
21 1456250
22 2912500
23 5268750
24 10537500
25 19062500
26 38125000
27 68968750
28 137937500
29 249531250
30 499062500
31 902812500
32 1805625000

[4,8,14,28,50,100,180,360,650,1300,2350,4700,8500,
 17000,30750,61500,111250,222500,402500,805000,
 1456250,2912500,5268750,10537500,19062500,
 38125000,68968750,137937500,249531250,499062500,
 902812500,1805625000]

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Last modified December 4 22:39 EST 2023. Contains 367565 sequences. (Running on oeis4.)