A349778 - cp's OEIS frontend

A349778 Number of ways to write n as x^2 + y^k + 2*z^m, where x,y,z are nonnegative integers with x >= y, and k and m belong to the set {2,3}.

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

[4, 4, 8, 4, 8, 4, 4, 4, 4, 6, 8, 4, 8, 4, 2, 2, 7, 10, 12, 8, 9, 3, 4, 2, 5, 11, 10, 8, 8, 3, 1, 3, 7, 10, 11, 5, 12, 7, 7, 4, 5, 8, 8, 7, 8, 8, 2, 3, 4, 9, 11, 8, 18, 5, 11, 8, 4, 8, 11, 8, 7, 6, 3, 8, 7, 12, 12, 12, 11, 4, 7, 5, 10, 9, 11, 7, 11, 4, 3, 6, 11, 13, 17, 9, 10, 6, 5, 7, 7, 13, 13, 12, 5, 6, 3, 3, 5, 14, 12, 10, 18]

cp's OEIS Frontend

A349778 Number of ways to write n as x^2 + y^k + 2*z^m, where x,y,z are nonnegative integers with x >= y, and k and m belong to the set {2,3}.

Table of values

List of values

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

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

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