A075790 - cp's OEIS frontend

A075790 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 s.

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

[2, 5, 1, 2, 2, 0, 1, 1, 4, 3, 4, 2, 6, 0, 1, 3, 2, 3, 2, 4, 2, 3, 2, 1, 10, 1, 3, 2, 14, 19, 1, 2, 4, 0, 1, 8, 3, 11, 5, 3, 2, 0, 21, 9, 2, 3, 9, 1, 2, 0, 7, 12, 26, 3, 3, 2, 8, 0, 29, 2, 8, 0, 1, 6, 4, 0, 33, 2, 10, 0, 5, 3, 2, 13, 5, 7, 2, 0, 7, 1, 12, 0, 41, 4, 6, 0, 13, 9, 2, 0, 3, 2, 2, 3, 7, 2, 2, 3]

cp's OEIS Frontend

A075790 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 s.

Table of values

List of values

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

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

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