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A220920 as a simple table

n a(n)
1 4
2 44
3 324
4 2456
5 18606
6 141464
7 1073265
8 8150889
9 61863941
10 469706074
11 3565661822
12 27070430317
13 205508452073
14 1560178900248
15 11844428071293
16 89919992489163
17 682648660439116
18 5182493876535532
19 39344142007624031

[4,44,324,2456,18606,141464,1073265,8150889,
 61863941,469706074,3565661822,27070430317,
 205508452073,1560178900248,11844428071293,
 89919992489163,682648660439116,5182493876535532,
 39344142007624031]

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Last modified April 26 09:43 EDT 2024. Contains 371994 sequences. (Running on oeis4.)