login

A278681 as a simple table

na(n)
03
116
285
3451
42392
512686
667280
7356818
81892376
910036172
1053226604
11282286052
121497097488
137939821584
1442108658448
15223322287224
161184384537744
176281355751296
1833313023614352
19176674843181968
20936990907061504
214969309405367264
2226354616443092800
23139771093164846816
24741272730213321216
253931322622695991104

[3,16,85,451,2392,12686,67280,356818,1892376,
 10036172,53226604,282286052,1497097488,7939821584,
 42108658448,223322287224,1184384537744,
 6281355751296,33313023614352,176674843181968,
 936990907061504,4969309405367264,
 26354616443092800,139771093164846816,
 741272730213321216,3931322622695991104]