A243387 - OEIS

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A243387 as a simple table

n	a(n)
1	14
2	46
3	174
4	737
5	3434
6	17366
7	94164
8	541060
9	3257286
10	20333069
11	130439432
12	853756157
13	5669606647
14	38041540586
15	257118895765
16	1746784622435
17	11909889453316
18	81408594286227
19	557440239347213
20	3821747622458620

[14,46,174,737,3434,17366,94164,541060,3257286, 20333069,130439432,853756157,5669606647, 38041540586,257118895765,1746784622435, 11909889453316,81408594286227,557440239347213, 3821747622458620]