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A304581 as a simple table

na(n)
00
10
21
31
441
513
68009
7161
8190513
9167101
1013371157
1121857
12316786853
13371449
1452598187029
15260957190289
16129548894873
173562512061
18295728132584141
19814542451061
20105590441859671453
2121013691164284241
222988054680665783
235623939943287
241567371864703176307

[0,0,1,1,41,13,8009,161,190513,167101,13371157,
 21857,316786853,371449,52598187029,260957190289,
 129548894873,3562512061,295728132584141,
 814542451061,105590441859671453,21013691164284241,
 2988054680665783,5623939943287,
 1567371864703176307]