A303363 - cp's OEIS frontend

A303363 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + 2^c + 2^d, where a,b,c,d are nonnegative integers with a <= b, c <= d and 2|c.

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	2
8	4
9	6
10	3
11	5
12	6
13	4
14	6
15	7
16	4
17	4
18	9
19	6
20	6
21	8
22	4
23	9
24	9
25	5
26	7
27	7
28	5
29	7
30	9
31	4
32	8
33	13
34	7
35	6
36	11
37	7
38	10
39	13
40	8
41	9
42	10
43	7
44	9
45	11
46	7
47	9
48	15
49	8
50	8
51	14
52	6
53	9
54	16
55	6
56	8
57	11
58	11
59	10
60	12
61	8
62	7
63	15
64	10
65	8
66	11
67	9
68	14
69	15
70	9

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

cp's OEIS Frontend

A303363 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + 2^c + 2^d, where a,b,c,d are nonnegative integers with a <= b, c <= d and 2|c.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	2
8	4
9	6
10	3
11	5
12	6
13	4
14	6
15	7
16	4
17	4
18	9
19	6
20	6
21	8
22	4
23	9
24	9
25	5
26	7
27	7
28	5
29	7
30	9
31	4
32	8
33	13
34	7
35	6
36	11
37	7
38	10
39	13
40	8
41	9
42	10
43	7
44	9
45	11
46	7
47	9
48	15
49	8
50	8
51	14
52	6
53	9
54	16
55	6
56	8
57	11
58	11
59	10
60	12
61	8
62	7
63	15
64	10
65	8
66	11
67	9
68	14
69	15
70	9

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	2
8	4
9	6
10	3
11	5
12	6
13	4
14	6
15	7
16	4
17	4
18	9
19	6
20	6
21	8
22	4
23	9
24	9
25	5
26	7
27	7
28	5
29	7
30	9
31	4
32	8
33	13
34	7
35	6
36	11
37	7
38	10
39	13
40	8
41	9
42	10
43	7
44	9
45	11
46	7
47	9
48	15
49	8
50	8
51	14
52	6
53	9
54	16
55	6
56	8
57	11
58	11
59	10
60	12
61	8
62	7
63	15
64	10
65	8
66	11
67	9
68	14
69	15
70	9

cp's OEIS Frontend

A303363 Number of ways to write n as a*(a+1)/2 + b*(b+1)/2 + 2^c + 2^d, where a,b,c,d are nonnegative integers with a <= b, c <= d and 2|c.

Table of values

List of values

A303363 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + 2^c + 2^d, where a,b,c,d are nonnegative integers with a <= b, c <= d and 2|c.

n	a(n)
1	0
2	1
3	2
4	2
5	3
6	3
7	2
8	4
9	6
10	3
11	5
12	6
13	4
14	6
15	7
16	4
17	4
18	9
19	6
20	6
21	8
22	4
23	9
24	9
25	5
26	7
27	7
28	5
29	7
30	9
31	4
32	8
33	13
34	7
35	6
36	11
37	7
38	10
39	13
40	8
41	9
42	10
43	7
44	9
45	11
46	7
47	9
48	15
49	8
50	8
51	14
52	6
53	9
54	16
55	6
56	8
57	11
58	11
59	10
60	12
61	8
62	7
63	15
64	10
65	8
66	11
67	9
68	14
69	15
70	9