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A220783 as a simple table

n a(n)
1 2
2 11
3 66
4 388
5 2292
6 13524
7 79820
8 471076
9 2780204
10 16408196
11 96837900
12 571517860
13 3372983916
14 19906675140
15 117485207756
16 693374153956
17 4092155315756
18 24151080671492
19 142534838636172
20 841212055946788
21 4964664988865004

[2,11,66,388,2292,13524,79820,471076,2780204,
 16408196,96837900,571517860,3372983916,
 19906675140,117485207756,693374153956,
 4092155315756,24151080671492,142534838636172,
 841212055946788,4964664988865004]

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Last modified September 13 09:21 EDT 2024. Contains 375904 sequences. (Running on oeis4.)