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A270242 as a simple table

n a(n)
0 1
1 9
2 90
3 735
4 5535
5 38619
6 254949
7 1604007
8 9696150
9 56601345
10 320465367
11 1765647477
12 9492925152
13 49918029894
14 257225030010
15 1301005101360
16 6467982571350
17 31645832177880
18 152542319368640
19 725110153435170
20 3401929848645540
21 15764621508983883
22 72206209735787754

[1,9,90,735,5535,38619,254949,1604007,9696150,
 56601345,320465367,1765647477,9492925152,
 49918029894,257225030010,1301005101360,
 6467982571350,31645832177880,152542319368640,
 725110153435170,3401929848645540,
 15764621508983883,72206209735787754]

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Last modified September 22 12:42 EDT 2019. Contains 327307 sequences. (Running on oeis4.)