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A317892 as a simple table

na(n)
10
22
313
482
5549
63697
725169
8170608
91156219
107839519
1153154565
12360388169
132443433405
1416566593998
15112322259076
16761549454562
175163336422278
1835007634908875
19237353212759913
201609264585122172
2110910880368099881

[0,2,13,82,549,3697,25169,170608,1156219,7839519,
 53154565,360388169,2443433405,16566593998,
 112322259076,761549454562,5163336422278,
 35007634908875,237353212759913,1609264585122172,
 10910880368099881]