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A047138 as a simple table

n a(n)
0 1
1 4
2 14
3 48
4 179
5 656
6 2394
7 8744
8 32791
9 123188
10 463211
11 1744076
12 6632688
13 25303978
14 96699766
15 370030836
16 1422210560
17 5479757300
18 21147107145
19 81707846148
20 316422360163
21 1227500661756
22 4768032430608
23 18539704936398

[1,4,14,48,179,656,2394,8744,32791,123188,463211,
 1744076,6632688,25303978,96699766,370030836,
 1422210560,5479757300,21147107145,81707846148,
 316422360163,1227500661756,4768032430608,
 18539704936398]

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Last modified April 19 02:04 EDT 2024. Contains 371782 sequences. (Running on oeis4.)