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A027009 as a simple table

n a(n)
1 1
2 1
3 9
4 14
5 46
6 81
7 209
8 389
9 901
10 1726
11 3774
12 7349
13 15541
14 30561
15 63329
16 125294
17 256366
18 509161
19 1033449
20 2057549
21 4154701
22 8284926
23 16673534
24 33282989
25 66837421
26 133507081
27 267724809
28 535010414
29 1071881326
30 2142612801

[1,1,9,14,46,81,209,389,901,1726,3774,7349,15541,
 30561,63329,125294,256366,509161,1033449,2057549,
 4154701,8284926,16673534,33282989,66837421,
 133507081,267724809,535010414,1071881326,
 2142612801]

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Last modified January 24 07:13 EST 2021. Contains 340398 sequences. (Running on oeis4.)