A175690 - OEIS

A175690 as a simple table

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	91
11	0
12	76
13	901
14	451
15	61
16	226
17	901
18	51
19	901
20	496
21	901
22	451
23	3601
24	826
25	397
26	1801
27	701
28	676
29	2701
30	3331
31	18901
32	12151
33	0
34	5851
35	8281
36	2776
37	2701
38	12601
39	5101
40	49996
41	72901
42	70951
43	69301
44	22726
45	22221
46	102151
47	101701
48	62476
49	61201

[1,1,1,1,1,1,1,1,1,91,0,76,901,451,61,226,901,51, 901,496,901,451,3601,826,397,1801,701,676,2701, 3331,18901,12151,0,5851,8281,2776,2701,12601,5101, 49996,72901,70951,69301,22726,22221,102151,101701, 62476,61201]