A302981 - cp's OEIS frontend

A302981 Number of ways to write n as x^2 + 2*y^2 + 2^z + 2^w, where x,y,z,w are nonnegative integers with z <= w.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	4
8	5
9	5
10	6
11	7
12	8
13	7
14	8
15	6
16	6
17	7
18	9
19	8
20	11
21	12
22	9
23	7
24	10
25	8
26	11
27	11
28	11
29	10
30	9
31	6
32	8
33	10
34	11
35	14
36	16
37	12
38	12
39	11
40	12
41	13
42	17
43	13
44	13
45	13
46	10
47	7
48	11
49	12
50	13
51	15
52	15
53	14
54	14
55	8
56	15
57	14
58	13
59	15
60	16

[0, 1, 2, 3, 4, 5, 4, 5, 5, 6, 7, 8, 7, 8, 6, 6, 7, 9, 8, 11, 12, 9, 7, 10, 8, 11, 11, 11, 10, 9, 6, 8, 10, 11, 14, 16, 12, 12, 11, 12, 13, 17, 13, 13, 13, 10, 7, 11, 12, 13, 15, 15, 14, 14, 8, 15, 14, 13, 15, 16]

cp's OEIS Frontend

A302981 Number of ways to write n as x^2 + 2*y^2 + 2^z + 2^w, where x,y,z,w are nonnegative integers with z <= w.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	4
8	5
9	5
10	6
11	7
12	8
13	7
14	8
15	6
16	6
17	7
18	9
19	8
20	11
21	12
22	9
23	7
24	10
25	8
26	11
27	11
28	11
29	10
30	9
31	6
32	8
33	10
34	11
35	14
36	16
37	12
38	12
39	11
40	12
41	13
42	17
43	13
44	13
45	13
46	10
47	7
48	11
49	12
50	13
51	15
52	15
53	14
54	14
55	8
56	15
57	14
58	13
59	15
60	16

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	4
8	5
9	5
10	6
11	7
12	8
13	7
14	8
15	6
16	6
17	7
18	9
19	8
20	11
21	12
22	9
23	7
24	10
25	8
26	11
27	11
28	11
29	10
30	9
31	6
32	8
33	10
34	11
35	14
36	16
37	12
38	12
39	11
40	12
41	13
42	17
43	13
44	13
45	13
46	10
47	7
48	11
49	12
50	13
51	15
52	15
53	14
54	14
55	8
56	15
57	14
58	13
59	15
60	16

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	4
8	5
9	5
10	6
11	7
12	8
13	7
14	8
15	6
16	6
17	7
18	9
19	8
20	11
21	12
22	9
23	7
24	10
25	8
26	11
27	11
28	11
29	10
30	9
31	6
32	8
33	10
34	11
35	14
36	16
37	12
38	12
39	11
40	12
41	13
42	17
43	13
44	13
45	13
46	10
47	7
48	11
49	12
50	13
51	15
52	15
53	14
54	14
55	8
56	15
57	14
58	13
59	15
60	16