A266004 - cp's OEIS frontend

A266004 Least nonnegative integer y such that -n = x^4 - y^3 + z^2 for some nonnegative integers x and z, or -1 if no such y exists.

n	a(n)
1	1
2	3
3	2
4	2
5	13
6	2
7	2
8	2
9	5
10	3
11	3
12	4
13	15
14	4
15	4
16	33
17	3
18	3
19	5
20	6
21	31
22	3
23	3
24	5
25	3
26	3
27	3
28	4
29	21
30	11
31	6
32	4
33	17
34	11
35	5
36	98
37	7
38	4
39	4
40	5
41	147
42	19
43	5
44	4
45	5
46	6
47	4
48	4
49	65
50	1011
51	7
52	9
53	7
54	4
55	4
56	6
57	59
58	47
59	4
60	4
61	5
62	4
63	4
64	4
65	13
66	7
67	18
68	9
69	175
70	8
71	6
72	6
73	5
74	15
75	5
76	5
77	103
78	7
79	6
80	13
81	11
82	27
83	7
84	5
85	375
86	6
87	7
88	5
89	5
90	11
91	13
92	13
93	5
94	6
95	6
96	8
97	413
98	379
99	5
100	5

[1, 3, 2, 2, 13, 2, 2, 2, 5, 3, 3, 4, 15, 4, 4, 33, 3, 3, 5, 6, 31, 3, 3, 5, 3, 3, 3, 4, 21, 11, 6, 4, 17, 11, 5, 98, 7, 4, 4, 5, 147, 19, 5, 4, 5, 6, 4, 4, 65, 1011, 7, 9, 7, 4, 4, 6, 59, 47, 4, 4, 5, 4, 4, 4, 13, 7, 18, 9, 175, 8, 6, 6, 5, 15, 5, 5, 103, 7, 6, 13, 11, 27, 7, 5, 375, 6, 7, 5, 5, 11, 13, 13, 5, 6, 6, 8, 413, 379, 5, 5]

cp's OEIS Frontend

A266004 Least nonnegative integer y such that -n = x^4 - y^3 + z^2 for some nonnegative integers x and z, or -1 if no such y exists.

Table of values

List of values