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A018912 as a simple table

n a(n)
0 1
1 19
2 251
3 2879
4 30891
5 320439
6 3266131
7 32986399
8 331554971
9 3324266759
10 33287301411
11 333100377519
12 3332157369451
13 33327408774679
14 333303531583091
15 3333183608754239
16 33332581847126331
17 333329564449052199

[1,19,251,2879,30891,320439,3266131,32986399,
 331554971,3324266759,33287301411,333100377519,
 3332157369451,33327408774679,333303531583091,
 3333183608754239,33332581847126331,
 333329564449052199]

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Last modified October 17 13:16 EDT 2021. Contains 348048 sequences. (Running on oeis4.)