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A027308 as a simple table

n a(n)
1 0
2 3
3 19
4 126
5 782
6 4720
7 28158
8 167076
9 988976
10 5848884
11 34587791
12 204607678
13 1211072430
14 7173288330
15 42519596826
16 252225457356
17 1497318796416
18 8895212879140
19 52881434260371
20 314587526985030
21 1872652395544866
22 11154143632096962
23 66476020466258370

[0,3,19,126,782,4720,28158,167076,988976,5848884,
 34587791,204607678,1211072430,7173288330,
 42519596826,252225457356,1497318796416,
 8895212879140,52881434260371,314587526985030,
 1872652395544866,11154143632096962,
 66476020466258370]

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Last modified April 19 03:30 EDT 2024. Contains 371782 sequences. (Running on oeis4.)