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A038021 as a simple table

na(n)
01
10
21
31
42
51
638
757
827
97
1013872
1118544
129280
132080
14192
1583360520
16104208775
1752110500
1813035000
191632750
2082355

[1,0,1,1,2,1,38,57,27,7,13872,18544,9280,2080,192,
 83360520,104208775,52110500,13035000,1632750,
 82355]