login

A001260 as a simple table

na(n)
10
20
30
40
51
65
745
8385
93710
1038934
11444990
125506710
1373422855
141049946755
1516035550531
16260577696015
174489954146860
1881781307674780
191570201107355980
2031698434854748604
21671260973394676605
2214879618243581997745

[0,0,0,0,1,5,45,385,3710,38934,444990,5506710,
 73422855,1049946755,16035550531,260577696015,
 4489954146860,81781307674780,1570201107355980,
 31698434854748604,671260973394676605,
 14879618243581997745]