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A159328 as a simple table

na(n)
02
14
210
324
456
5130
6302
7702
81632
93794
108820
1120504
1247666
13110810
14257602
15598852
161392162
173236384
187523680
1917490434
2040660326
2194523790
22219741152
23510836202
241187550092
252760719024
266417893090
2714919791314
2834684306786

[2,4,10,24,56,130,302,702,1632,3794,8820,20504,
 47666,110810,257602,598852,1392162,3236384,
 7523680,17490434,40660326,94523790,219741152,
 510836202,1187550092,2760719024,6417893090,
 14919791314,34684306786]