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A168116 as a simple table

n a(n)
0 0
1 1
2 257
3 9843
4 131074
5 976565
6 5038851
7 20176807
8 67108868
9 193710249
10 500000005
11 1178973851
12 2579890182
13 5302249693
14 10330523399
15 19221679695
16 34359738376
17 59293938257
18 99179645193
19 161343848899
20 256000000010
21 397140023301
22 603634608907

[0,1,257,9843,131074,976565,5038851,20176807,
 67108868,193710249,500000005,1178973851,
 2579890182,5302249693,10330523399,19221679695,
 34359738376,59293938257,99179645193,161343848899,
 256000000010,397140023301,603634608907]

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Last modified September 22 17:13 EDT 2019. Contains 327311 sequences. (Running on oeis4.)