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A369156 as a simple table

na(n)
01
14
222
3140
4968
57064
653544
7417456
83326304
926967040
10221733568
111844667136
1215498804480
13131325820032
141120928667264
159628975973120
1683181462291968
17722175844640768
186297942966129664
1955143987250677760
20484589284705202176
214272491458636754944

[1,4,22,140,968,7064,53544,417456,3326304,
 26967040,221733568,1844667136,15498804480,
 131325820032,1120928667264,9628975973120,
 83181462291968,722175844640768,6297942966129664,
 55143987250677760,484589284705202176,
 4272491458636754944]