A073374 - OEIS

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A073374 as a simple table

n	a(n)
0	1
1	5
2	25
3	95
4	340
5	1106
6	3430
7	10130
8	28915
9	80035
10	216143
11	571225
12	1482110
13	3783640
14	9522740
15	23665300
16	58149845
17	141435985
18	340854645
19	814589475
20	1931900376
21	4549699950
22	10645737330
23	24761578470

[1,5,25,95,340,1106,3430,10130,28915,80035,216143, 571225,1482110,3783640,9522740,23665300,58149845, 141435985,340854645,814589475,1931900376, 4549699950,10645737330,24761578470]