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A094434 as a simple table

na(n)
10
22
312
460
5288
61368
76480
830672
9145152
10686880
113250368
1215380928
1372783360
14344414592
151629787392
167712236800
1736494696448
18172694757888
19817200368640
203867033664512
2118298999775232
2286591796664320
23409756781334528

[0,2,12,60,288,1368,6480,30672,145152,686880,
 3250368,15380928,72783360,344414592,1629787392,
 7712236800,36494696448,172694757888,817200368640,
 3867033664512,18298999775232,86591796664320,
 409756781334528]