A136325-OEIS公司

136325英镑作为一个简单的表

n个	a（n）
0	0
1	三
2	24
三	189
4	1488
5	11715
6	92232
7	726141
8	5716896
9	45009027
10	354355320
11	2789833533
12	21964312944
13	172924670019
14	1361433047208
15	10718539707645
16	84386884613952
17	664376537203971
18	5230625413017816
19	41180626766938557

[0,3,24,189,1488,11715,92232,726141,5716896,45009027,354355320,2789833533,21964312944,172924670019,1361433047208,10718539707645,84386884613952,664376537203971,5230625413017816,41180626766938557]