login

A308440 as a simple table

na(n)
11
25
31
437
515
61
7365
8223
930
101
114501
123675
13745
1450
151
1666605
1768071
1818450
191865
2075
211
221149877
231411515
24479101
2564750
263920
27105
281
2922687565
3032512663
3113260030
322244501
33181650
347322
35140
361
37503589781
38825175275
39393017185
4079948050
418103711
42436590
4312558
44180
451

[1,5,1,37,15,1,365,223,30,1,4501,3675,745,50,1,
 66605,68071,18450,1865,75,1,1149877,1411515,
 479101,64750,3920,105,1,22687565,32512663,
 13260030,2244501,181650,7322,140,1,503589781,
 825175275,393017185,79948050,8103711,436590,12558,
 180,1]