A075791 - cp's OEIS frontend

A075791 If n can be written in the form r^i-s^j (see A074981), where r,s,i,j are integers with r>0, s>0, i>1, j>1 choose the representation with smallest r^i (in case of ties, minimize i and j); or if n is not of this form set r=s=i=j=0; sequence gives values of j.

n	a(n)
1	3
2	2
3	2
4	2
5	2
6	0
7	2
8	2
9	2
10	7
11	2
12	2
13	2
14	0
15	2
16	2
17	3
18	2
19	3
20	2
21	2
22	3
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	3
31	2
32	2
33	2
34	0
35	2
36	2
37	3
38	3
39	2
40	2
41	3
42	0
43	2
44	2
45	2
46	5
47	2
48	2
49	5
50	0
51	2
52	2
53	2
54	3
55	2
56	3
57	2
58	0
59	2
60	2
61	2
62	0
63	2
64	2
65	2
66	0
67	2
68	5
69	2
70	0
71	3
72	2
73	3
74	2
75	2
76	2
77	2
78	0
79	2
80	2
81	2
82	0
83	2
84	2
85	2
86	0
87	2
88	2
89	5
90	0
91	2
92	3
93	5
94	3
95	2
96	2
97	7
98	3
99	2
100	2
101	3
102	0
103	2
104	2
105	2

[3, 2, 2, 2, 2, 0, 2, 2, 2, 7, 2, 2, 2, 0, 2, 2, 3, 2, 3, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 0, 2, 2, 3, 3, 2, 2, 3, 0, 2, 2, 2, 5, 2, 2, 5, 0, 2, 2, 2, 3, 2, 3, 2, 0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 5, 2, 0, 3, 2, 3, 2, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 5, 0, 2, 3, 5, 3, 2, 2, 7, 3, 2, 2, 3, 0, 2, 2, 2]

cp's OEIS Frontend

A075791 If n can be written in the form r^i-s^j (see A074981), where r,s,i,j are integers with r>0, s>0, i>1, j>1 choose the representation with smallest r^i (in case of ties, minimize i and j); or if n is not of this form set r=s=i=j=0; sequence gives values of j.

Table of values

List of values

n	a(n)
1	3
2	2
3	2
4	2
5	2
6	0
7	2
8	2
9	2
10	7
11	2
12	2
13	2
14	0
15	2
16	2
17	3
18	2
19	3
20	2
21	2
22	3
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	3
31	2
32	2
33	2
34	0
35	2
36	2
37	3
38	3
39	2
40	2
41	3
42	0
43	2
44	2
45	2
46	5
47	2
48	2
49	5
50	0
51	2
52	2
53	2
54	3
55	2
56	3
57	2
58	0
59	2
60	2
61	2
62	0
63	2
64	2
65	2
66	0
67	2
68	5
69	2
70	0
71	3
72	2
73	3
74	2
75	2
76	2
77	2
78	0
79	2
80	2
81	2
82	0
83	2
84	2
85	2
86	0
87	2
88	2
89	5
90	0
91	2
92	3
93	5
94	3
95	2
96	2
97	7
98	3
99	2
100	2
101	3
102	0
103	2
104	2
105	2

n	a(n)
1	3
2	2
3	2
4	2
5	2
6	0
7	2
8	2
9	2
10	7
11	2
12	2
13	2
14	0
15	2
16	2
17	3
18	2
19	3
20	2
21	2
22	3
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	3
31	2
32	2
33	2
34	0
35	2
36	2
37	3
38	3
39	2
40	2
41	3
42	0
43	2
44	2
45	2
46	5
47	2
48	2
49	5
50	0
51	2
52	2
53	2
54	3
55	2
56	3
57	2
58	0
59	2
60	2
61	2
62	0
63	2
64	2
65	2
66	0
67	2
68	5
69	2
70	0
71	3
72	2
73	3
74	2
75	2
76	2
77	2
78	0
79	2
80	2
81	2
82	0
83	2
84	2
85	2
86	0
87	2
88	2
89	5
90	0
91	2
92	3
93	5
94	3
95	2
96	2
97	7
98	3
99	2
100	2
101	3
102	0
103	2
104	2
105	2

n	a(n)
1	3
2	2
3	2
4	2
5	2
6	0
7	2
8	2
9	2
10	7
11	2
12	2
13	2
14	0
15	2
16	2
17	3
18	2
19	3
20	2
21	2
22	3
23	2
24	2
25	2
26	2
27	2
28	2
29	2
30	3
31	2
32	2
33	2
34	0
35	2
36	2
37	3
38	3
39	2
40	2
41	3
42	0
43	2
44	2
45	2
46	5
47	2
48	2
49	5
50	0
51	2
52	2
53	2
54	3
55	2
56	3
57	2
58	0
59	2
60	2
61	2
62	0
63	2
64	2
65	2
66	0
67	2
68	5
69	2
70	0
71	3
72	2
73	3
74	2
75	2
76	2
77	2
78	0
79	2
80	2
81	2
82	0
83	2
84	2
85	2
86	0
87	2
88	2
89	5
90	0
91	2
92	3
93	5
94	3
95	2
96	2
97	7
98	3
99	2
100	2
101	3
102	0
103	2
104	2
105	2