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A107956 as a simple table

na(n)
01
123
2205
31120
44508
514700
641076
7101970
8230505
9482911
10949949
111772134
123159520
135416880
148975184
1514430348
1622590297
1734531455
1851665845
1975820052
20109327372
21155134540
22216924500
23299256750
24407726865
25549146871
26731748213

[1,23,205,1120,4508,14700,41076,101970,230505,
 482911,949949,1772134,3159520,5416880,8975184,
 14430348,22590297,34531455,51665845,75820052,
 109327372,155134540,216924500,299256750,407726865,
 549146871,731748213]