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A129839 as a simple table

na(n)
00
10
20
31
436
5625
68100
790601
8933156
99150625
1087048900
11812307001
127486748676
1368447640625
14622473660900
155641104760201
1651003678922596
17460438253730625
184152386009780100
1937422167780506201
20337103845136750916
213035761307578140625
2227332814735512302500

[0,0,0,1,36,625,8100,90601,933156,9150625,
 87048900,812307001,7486748676,68447640625,
 622473660900,5641104760201,51003678922596,
 460438253730625,4152386009780100,
 37422167780506201,337103845136750916,
 3035761307578140625,27332814735512302500]