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A060898 as a simple table

na(n)
01
14
214
354
4200
5776
62940
711466
843980
9172170
10665544
112612764
1210154144
1339949000
14155864280
15614260062
162403739140
179486263092
1837209147800
19147012850512
20577741491404
212284848892872
228993216244896
2335595538140656
24140288753584200
25555662416386840

[1,4,14,54,200,776,2940,11466,43980,172170,665544,
 2612764,10154144,39949000,155864280,614260062,
 2403739140,9486263092,37209147800,147012850512,
 577741491404,2284848892872,8993216244896,
 35595538140656,140288753584200,555662416386840]