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A120477 as a simple table

na(n)
01
16
222
363
4155
5343
6702
71352
82480
94370
107445
1112323
1219894
1331421
1448675
1574111
16111099
17164221
18239656
19345670
20493243
21696861
22975518
231353971
241864315
252547941
263457972
274662273
286247169
298322010
3011024775
3114528914
3219051697

[1,6,22,63,155,343,702,1352,2480,4370,7445,12323,
 19894,31421,48675,74111,111099,164221,239656,
 345670,493243,696861,975518,1353971,1864315,
 2547941,3457972,4662273,6247169,8322010,11024775,
 14528914,19051697]