A201981 - OEIS

A201981 as a simple table

n	a(n)
1	4
2	4
3	4
4	4
5	30
6	4
7	4
8	72
9	72
10	4
11	4
12	131
13	1372
14	131
15	4
16	4
17	208
18	9260
19	9260
20	208
21	4
22	4
23	304
24	38112
25	408599
26	38112
27	304
28	4
29	4
30	420
31	117744
32	8002304
33	8002304
34	117744
35	420
36	4
37	4
38	557
39	301612
40	91893727
41	858105364
42	91893727
43	301612
44	557
45	4
46	4
47	716
48	676792

[4,4,4,4,30,4,4,72,72,4,4,131,1372,131,4,4,208, 9260,9260,208,4,4,304,38112,408599,38112,304,4,4, 420,117744,8002304,8002304,117744,420,4,4,557, 301612,91893727,858105364,91893727,301612,557,4,4, 716,676792]

[4,4,4,4,30,4,4,72,72,4,4,131,1372,131,4,4,208,
 9260,9260,208,4,4,304,38112,408599,38112,304,4,4,
 420,117744,8002304,8002304,117744,420,4,4,557,
 301612,91893727,858105364,91893727,301612,557,4,4,
 716,676792]