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A221973 as a simple table

n a(n)
0 1
1 3
2 10
3 39
4 183
5 1026
6 6695
7 49623
8 411050
9 3763599
10 37757055
11 411894882
12 4854301087
13 61459583007
14 831926801290
15 11989221944871
16 183273754945959
17 2961997167865410
18 50462267599637975
19 903853088211536295
20 16980055625062979306
21 333846342195447641343

[1,3,10,39,183,1026,6695,49623,411050,3763599,
 37757055,411894882,4854301087,61459583007,
 831926801290,11989221944871,183273754945959,
 2961997167865410,50462267599637975,
 903853088211536295,16980055625062979306,
 333846342195447641343]

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Last modified July 14 01:56 EDT 2024. Contains 374290 sequences. (Running on oeis4.)