A103722 - OEIS

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A103722 as a simple table

n	a(n)
0	1
1	22
2	350
3	5082
4	72723
5	1059828
6	15977093
7	251060381
8	4127061939
9	71072689688
10	1282475317760
11	24236090536840
12	479241115418584
13	9904652632613008
14	213690639892631680
15	4806627321727980560
16	112576965096880250736

[1,22,350,5082,72723,1059828,15977093,251060381, 4127061939,71072689688,1282475317760, 24236090536840,479241115418584,9904652632613008, 213690639892631680,4806627321727980560, 112576965096880250736]