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A289679 as a simple table

na(n)
11
22
310
475
5728
68526
7115764
81776060
930240210
10563870450
1111397261720
12247700513242
135750374629244
14141819106313800
153698639651089800
16101603353693132215
172929908721122796680
1888427704298354261610
192785943404258558905900
2091410200883108291556680
213117102657076175159955420

[1,2,10,75,728,8526,115764,1776060,30240210,
 563870450,11397261720,247700513242,5750374629244,
 141819106313800,3698639651089800,
 101603353693132215,2929908721122796680,
 88427704298354261610,2785943404258558905900,
 91410200883108291556680,3117102657076175159955420]