A192871-OEIS公司

A192871号作为一个简单的表

n个	a（n）
0	1
1	三
2	6
三	12
4	24
5	48
6	90
7	168
8	318
9	594
10	1092
11	2004
12	3678
13	6720
14	12210
15	22128
16	40074
17	72372
18	130380
19	234432
20	421128
21	755208
22	1352328
23	2418246
24	4320552
25	7709898
26	13744764
27	24477618
28	43560444
29	77448330
30	137602440
31	244277016
32	433399824
33	768379830
34	1361530134

[1,3,6,12,24,48,90,168,318,594,1092,2004,3678,6720,12210,22128,40074,72372,130380,234432,421128,755208,1352328,2418246,4320552,7709898,13744764,24477618,43560444,77448330,137602440,244277016,433399824,768379830,1361530134]