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A200987 as a simple table

na(n)
11
221
3140
41095
54919
627000
797341
8383172
91188521
103704820
119947816
1227240277
1365292069
14157646021
15349738426
16770969390
171585648871
183256248216
196303135880
2012177430692
2122459794938
2241128002746
2372582886199
24127586136583

[1,21,140,1095,4919,27000,97341,383172,1188521,
 3704820,9947816,27240277,65292069,157646021,
 349738426,770969390,1585648871,3256248216,
 6303135880,12177430692,22459794938,41128002746,
 72582886199,127586136583]