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A144720 as a simple table

n a(n)
0 2
1 3
2 10
3 37
4 138
5 515
6 1922
7 7173
8 26770
9 99907
10 372858
11 1391525
12 5193242
13 19381443
14 72332530
15 269948677
16 1007462178
17 3759900035
18 14032137962
19 52368651813
20 195442469290
21 729401225347
22 2722162432098
23 10159248503045

[2,3,10,37,138,515,1922,7173,26770,99907,372858,
 1391525,5193242,19381443,72332530,269948677,
 1007462178,3759900035,14032137962,52368651813,
 195442469290,729401225347,2722162432098,
 10159248503045]

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Last modified June 13 02:52 EDT 2024. Contains 373366 sequences. (Running on oeis4.)