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A231694 as a simple table

n a(n)
1 4
2 28
3 272
4 1998
5 13260
6 94996
7 691229
8 4926082
9 35082734
10 251198534
11 1797886622
12 12852933731
13 91912956748
14 657463618650
15 4702487810918
16 33632995941197
17 240557644773042
18 1720590474243847
19 12306454228470804
20 88021459865552231

[4,28,272,1998,13260,94996,691229,4926082,
 35082734,251198534,1797886622,12852933731,
 91912956748,657463618650,4702487810918,
 33632995941197,240557644773042,1720590474243847,
 12306454228470804,88021459865552231]

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Last modified April 23 08:33 EDT 2024. Contains 371905 sequences. (Running on oeis4.)