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A112426 as a simple table

na(n)
10
20
30
40
50
61
79
8134
91714
1018436
11167703
121327240
139372119
1460324933
15359730035
162012733260
1710670975762
1854028108819
19262872075003
201235323112178
215630370812614

[0,0,0,0,0,1,9,134,1714,18436,167703,1327240,
 9372119,60324933,359730035,2012733260,10670975762,
 54028108819,262872075003,1235323112178,
 5630370812614]