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A251060 as a simple table

na(n)
1867
217129
3320950
46182747
5119032248
62295692500
744280784440
8854262466837
916480691222664
10317958213164772
116134299936443854
12118348278776443364
132283277183839898530
1444051001079322901638
15849870585415520935170

[867,17129,320950,6182747,119032248,2295692500,
 44280784440,854262466837,16480691222664,
 317958213164772,6134299936443854,
 118348278776443364,2283277183839898530,
 44051001079322901638,849870585415520935170]