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A171849 as a simple table

na(n)
00
10
20
31
44
512
636
7104
8292
9810
102224
116058
1216408
1344240
14118848
15318339
16850608
172268206
186037892
1916048945
2042604344
21112974302
22299284044
23792164740
242095161996
255537651796
2614627504340
2738616930931
28101899265656

[0,0,0,1,4,12,36,104,292,810,2224,6058,16408,
 44240,118848,318339,850608,2268206,6037892,
 16048945,42604344,112974302,299284044,792164740,
 2095161996,5537651796,14627504340,38616930931,
 101899265656]