login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A303552 as a simple table

na(n)
10
21
31
43
51
69
71
818
97
1044
111
12119
131
14246
1548
16585
171
181470
191
203248
21250
227535
231
2418114
2542
2640593
271373
2893726
291
30218665
311
32493735
337539
341127981
35285
362587962
371
385841445
3940597
4013244166
411
4230047413
431
4467604050
45216745
46152258273
471
48342747130

[0,1,1,3,1,9,1,18,7,44,1,119,1,246,48,585,1,1470,
 1,3248,250,7535,1,18114,42,40593,1373,93726,1,
 218665,1,493735,7539,1127981,285,2587962,1,
 5841445,40597,13244166,1,30047413,1,67604050,
 216745,152258273,1,342747130]