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A220055 as a simple table

n a(n)
0 1
1 1
2 87
3 849
4 16839
5 249651
6 4134881
7 65564239
8 1057354073
9 16939662301
10 272086395449
11 4365892578855
12 70082433262847
13 1124809701807527
14 18054055051423891
15 289774657566172859
16 4651038841674376909
17 74651407535212480809
18 1198192596525147061411

[1,1,87,849,16839,249651,4134881,65564239,
 1057354073,16939662301,272086395449,4365892578855,
 70082433262847,1124809701807527,18054055051423891,
 289774657566172859,4651038841674376909,
 74651407535212480809,1198192596525147061411]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)