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A102909 as a simple table

n a(n)
0 1
1 9
2 511
3 9841
4 87381
5 488281
6 2015539
7 6725601
8 19173961
9 48427561
10 111111111
11 235794769
12 469070941
13 883708281
14 1589311291
15 2745954241
16 4581298449
17 7411742281
18 11668193551
19 17927094321
20 26947368421
21 39714002329
22 57489010371
23 81870575521
24 114861197401

[1,9,511,9841,87381,488281,2015539,6725601,
 19173961,48427561,111111111,235794769,469070941,
 883708281,1589311291,2745954241,4581298449,
 7411742281,11668193551,17927094321,26947368421,
 39714002329,57489010371,81870575521,114861197401]

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)