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A235031 as a simple table

n a(n)
17 2
18 1
19 26
20 28
21 66
22 289
23 579
24 3468
25 23889
26 2366688
27 45579999
28 356688888888
29 35888888888888889
30 2455566666777777999999999999999 

[2,1,26,28,66,289,579,3468,23889,2366688,45579999,
 356688888888,35888888888888889,
 2455566666777777999999999999999]

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Last modified September 8 15:49 EDT 2024. Contains 375753 sequences. (Running on oeis4.)