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”).

A375041 as a simple table

na(n)
11
21
31
43
52
61
78
817
910
101
1118
1297
13180
14100
151
1635
17403
181829
193160
201700
211
2261
231313
2412307
2550714
2683860
2744200
281
2998
303570
3160888
32506073
331960278
343147020
351635400
361
37148
388470
39239388
403550473
4127263928
42101160920
43158986400
4481770000
451
46213

[1,1,1,3,2,1,8,17,10,1,18,97,180,100,1,35,403,
 1829,3160,1700,1,61,1313,12307,50714,83860,44200,
 1,98,3570,60888,506073,1960278,3147020,1635400,1,
 148,8470,239388,3550473,27263928,101160920,
 158986400,81770000,1,213]