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”).

A160047 as a simple table

na(n)
11
21
31
41
52
61
76
83
94
106
1160
125
1320
1410
1528
1635
17280
18140
192520
20126
21120
221260
2327720
241155
255544
2613860
2740040
2812870
29360360
3012012
31360360
3245045
3321840
34360360
35350064
36340340
374084080
382042040
391989680
401939938
4115519504
42369512
435173168

[1,1,1,1,2,1,6,3,4,6,60,5,20,10,28,35,280,140,
 2520,126,120,1260,27720,1155,5544,13860,40040,
 12870,360360,12012,360360,45045,21840,360360,
 350064,340340,4084080,2042040,1989680,1939938,
 15519504,369512,5173168]