A262982 - cp's OEIS frontend

A262982 Number of ordered ways to write n as x^4 + phi(y^2) + z*(z+1)/2 with x >= 0, y > 0 and z > 0, where phi(.) is Euler's totient function given by A000010.

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

[0, 1, 2, 2, 2, 1, 2, 3, 3, 2, 2, 4, 3, 2, 2, 3, 3, 4, 3, 1, 3, 4, 7, 4, 2, 1, 5, 4, 3, 5, 3, 2, 3, 5, 3, 3, 4, 5, 5, 1, 3, 5, 6, 3, 4, 5, 4, 5, 6, 3, 5, 4, 4, 5, 3, 5, 8, 7, 3, 3, 5, 4, 5, 7, 3, 2, 4, 6, 7, 4, 3, 3, 5, 2, 3, 6, 5, 3, 6, 3, 2, 1, 4, 6, 7, 6, 5, 6, 1, 6, 5, 5, 6, 6, 4, 3, 4, 6, 7, 5]

cp's OEIS Frontend

A262982 Number of ordered ways to write n as x^4 + phi(y^2) + z*(z+1)/2 with x >= 0, y > 0 and z > 0, where phi(.) is Euler's totient function given by A000010.

Table of values

List of values

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

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

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