login

A199891 as a simple table

na(n)
10
20
30
41
50
62
70
84
91
108
1112
1231
1330
1450
1584
16166
17240
18367
19560
20970
211647
222736
234340
246924
2511185
2618334
2729875
2848272
2977632
30125262
31202838
32329098
33533758
34865248
351402099
362271831
373680202
385960113
399650231
4015624475
4125301422
4240983324
4366398800

[0,0,0,1,0,2,0,4,1,8,12,31,30,50,84,166,240,367,
 560,970,1647,2736,4340,6924,11185,18334,29875,
 48272,77632,125262,202838,329098,533758,865248,
 1402099,2271831,3680202,5960113,9650231,15624475,
 25301422,40983324,66398800]