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A286918 as a simple table

n a(n)
0 1
1 3
2 21
3 159
4 1257
5 10046
6 81811
7 674184
8 5605141
9 46920874
10 394949193
11 3339464105
12 28343082002
13 241324470723
14 2060357315568
15 17632454524499
16 151211115930880
17 1299121121946684
18 11179500360964780
19 96344672766997340
20 831385476662968094
21 7182777882757416692

[1,3,21,159,1257,10046,81811,674184,5605141,
 46920874,394949193,3339464105,28343082002,
 241324470723,2060357315568,17632454524499,
 151211115930880,1299121121946684,
 11179500360964780,96344672766997340,
 831385476662968094,7182777882757416692]

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Last modified September 19 04:39 EDT 2019. Contains 327187 sequences. (Running on oeis4.)