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A320288 as a simple table

na(n)
01
11
214
3504
435054
54004100
6680823583
7161337142848
850830272555828
920549783554154775
1010370522690234157175
116390016526512315766520
124721172172018812127424546
134119920939845363203406535407
144192465334819134111336349480680
154920767556196547768620408273728000

[1,1,14,504,35054,4004100,680823583,161337142848,
 50830272555828,20549783554154775,
 10370522690234157175,6390016526512315766520,
 4721172172018812127424546,
 4119920939845363203406535407,
 4192465334819134111336349480680,
 4920767556196547768620408273728000]