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A250784 as a simple table

n a(n)
1 18
2 46
3 106
4 238
5 518
6 1106
7 2326
8 4838
9 9978
10 20446
11 41686
12 84658
13 171398
14 346166
15 697786
16 1404398
17 2823078
18 5669266
19 11375926
20 22812358
21 45722618
22 91603646
23 183463606
24 367341938
25 735354918
26 1471795606
27 2945348026
28 5893538638

[18,46,106,238,518,1106,2326,4838,9978,20446,
 41686,84658,171398,346166,697786,1404398,2823078,
 5669266,11375926,22812358,45722618,91603646,
 183463606,367341938,735354918,1471795606,
 2945348026,5893538638]

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Last modified January 31 01:17 EST 2023. Contains 359947 sequences. (Running on oeis4.)