A077416-OEIS公司

A077416号作为一张简单的桌子

n个	a（n）
0	1
1	13
2	155
三	1847
4	22009
5	262261
6	3125123
7	37239215
8	443745457
9	5287706269
10	63008729771
11	750817050983
12	8946795882025
13	106610733533317
14	1270382006517779
15	15137973344680031
16	180385298129642593

[1,13,155,1847,22009,262261,3125123,37239215,443745457,5287706269,63008729771,750817050983,8946795882025,106610733533317,1270382006517779,15137973344680031,180385298129642593]