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A271190 as a simple table

na(n)
10
21
372
410716
54023409
63973372776
710282778195346
869615227852939489
91237061064284160182778
1057993308799736991495547414

[0,1,72,10716,4023409,3973372776,10282778195346,
 69615227852939489,1237061064284160182778,
 57993308799736991495547414]