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A338707 as a simple table

na(n)
10
20
30
40
50
60
70
81
95
1022
1174
12219
13576
141394
153150
166733
1713744
1826969
1951185
2094323
21169453
22297533
23512006
24865050
251437739
262353756
273801041
286060918
299552826
3014894428
3122991659
3235159606
3353299703
3480137271
35119563216
36177091225
37260504790
38380720841

[0,0,0,0,0,0,0,1,5,22,74,219,576,1394,3150,6733,
 13744,26969,51185,94323,169453,297533,512006,
 865050,1437739,2353756,3801041,6060918,9552826,
 14894428,22991659,35159606,53299703,80137271,
 119563216,177091225,260504790,380720841]