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A047772 as a simple table

n a(n)
1 0
2 0
3 1
4 8
5 42
6 232
7 1277
8 7183
9 41041
10 238315
11 1402076
12 8343804
13 50136483
14 303790544
15 1854115285
16 11388104153
17 70338364135
18 436605050440
19 2722153369473
20 17040017600925
21 107052073186950
22 674752469797923
23 4265733944934540

[0,0,1,8,42,232,1277,7183,41041,238315,1402076,
 8343804,50136483,303790544,1854115285,11388104153,
 70338364135,436605050440,2722153369473,
 17040017600925,107052073186950,674752469797923,
 4265733944934540]

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)