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A338437 as a simple table

na(n)
01
11
22
39
432
5300
6864
717612
874752
91152792
106470400
11220057992
12719622144
1340754156352
14192835098624
154787867880000
1655181218873344
173071730630989952
1811004144881762304
191179255538492239744
205720352215040000000
21253837962769406045184
223262870639485701849088

[1,1,2,9,32,300,864,17612,74752,1152792,6470400,
 220057992,719622144,40754156352,192835098624,
 4787867880000,55181218873344,3071730630989952,
 11004144881762304,1179255538492239744,
 5720352215040000000,253837962769406045184,
 3262870639485701849088]