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A041720 as a simple table

n a(n)
0 19
1 39
2 1501
3 3041
4 117059
5 237159
6 9129101
7 18495361
8 711952819
9 1442400999
10 55523190781
11 112488782561
12 4330096928099
13 8772682638759
14 337692037200941
15 684156757040641
16 26335648804745299
17 53355454366531239

[19,39,1501,3041,117059,237159,9129101,18495361,
 711952819,1442400999,55523190781,112488782561,
 4330096928099,8772682638759,337692037200941,
 684156757040641,26335648804745299,
 53355454366531239]

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Last modified October 15 21:38 EDT 2021. Contains 348034 sequences. (Running on oeis4.)