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A301931 as a simple table

n a(n)
1 1
2 2
3 14
4 154
5 2186
6 36930
7 712158
8 15295602
9 360155378
10 9196938274
11 252714360398
12 7428201595178
13 232480106673562
14 7717715629942274
15 270896581615492926
16 10025955123898058082
17 390290027013023089122
18 15945008348985522925890
19 682270367930391378957198
20 30518971384549282782489786
21 1424657384555111198491140138
22 69290703924209121823629630018

[1,2,14,154,2186,36930,712158,15295602,360155378,
 9196938274,252714360398,7428201595178,
 232480106673562,7717715629942274,
 270896581615492926,10025955123898058082,
 390290027013023089122,15945008348985522925890,
 682270367930391378957198,
 30518971384549282782489786,
 1424657384555111198491140138,
 69290703924209121823629630018]

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Last modified May 18 12:18 EDT 2024. Contains 372630 sequences. (Running on oeis4.)