A177905-OEIS公司

A177905号作为一个简单的表

n个	a（n）
1	1
2	2
三	4
4	6
5	12
6	26
7	42
8	52
9	68
10	78
11	84
12	114
13	156
14	186
15	204
16	222
17	228
18	372
19	444
20	546
21	798
22	876
23	884
24	1092
25	1218
26	1252
27	1302
28	1378
29	1428
30	1482
31	1554
32	1596
33	1806
34	2418
35	2436
36	2604
37	2652
38	2756
39	2886
40	2964
41	3108
42	3534
43	3606
44	3612
45	3756
46	3876
47	4134
48	4218
49	4836

[1,2,4,6,12,26,42,52,68,78,84,114,156,186,204,222,228,372,444,546,798,876,884,1092,1218,1252,1302,1378,1428,1482,1554,1596,1806,2418,2436,2604,2652,2756,2886,2964,3108,3534,3606,3612,3756,3876,4134,4218,4836]