A240050 - OEIS

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A240050 as a simple table

n	a(n)
1	8
2	50
3	309
4	1496
5	7514
6	55034
7	236282
8	1248277
9	6431987
10	29170979
11	155931126
12	801190472
13	4068998418
14	19619747500
15	103973075128
16	508889855031
17	2476317886402
18	12705627199443
19	63280997191424
20	313215400063102

[8,50,309,1496,7514,55034,236282,1248277,6431987, 29170979,155931126,801190472,4068998418, 19619747500,103973075128,508889855031, 2476317886402,12705627199443,63280997191424, 313215400063102]