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A164697 as a simple table

n a(n)
0 1
1 4
2 12
3 36
4 108
5 324
6 972
7 2916
8 8742
9 26208
10 78576
11 235584
12 706320
13 2117664
14 6349104
15 19035648
16 57071982
17 171111132
18 513019140
19 1538115228
20 4611520836
21 13826093148
22 41452886916
23 124282529820
24 372619336494
25 1117173669768

[1,4,12,36,108,324,972,2916,8742,26208,78576,
 235584,706320,2117664,6349104,19035648,57071982,
 171111132,513019140,1538115228,4611520836,
 13826093148,41452886916,124282529820,372619336494,
 1117173669768]

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Last modified April 17 20:27 EDT 2024. Contains 371767 sequences. (Running on oeis4.)