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A059409 as a simple table

na(n)
00
14
248
3448
43840
531744
6258048
72080768
816711680
9133955584
101072693248
118585740288
1268702699520
13549688705024
144397778075648
1535183298347008
16281470681743360
172251782633816064
1818014329790005248
19144114913197948928
201152920405095219200

[0,4,48,448,3840,31744,258048,2080768,16711680,
 133955584,1072693248,8585740288,68702699520,
 549688705024,4397778075648,35183298347008,
 281470681743360,2251782633816064,
 18014329790005248,144114913197948928,
 1152920405095219200]