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A107390 as a simple table

n a(n)
1 4
2 6
3 18
4 36
5 76
6 147
7 285
8 532
9 984
10 1795
11 3237
12 5793
13 10293
14 18168
15 31887
16 55709
17 96926
18 167972
19 290136
20 499615
21 857947
22 1469576
23 2511369
24 4282663
25 7289002
26 12383250
27 21002336
28 35564859
29 60136917
30 101547211
31 171253466
32 288461204

[4,6,18,36,76,147,285,532,984,1795,3237,5793,
 10293,18168,31887,55709,96926,167972,290136,
 499615,857947,1469576,2511369,4282663,7289002,
 12383250,21002336,35564859,60136917,101547211,
 171253466,288461204]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)