A276520 - cp's OEIS frontend

A276520 a(n) is the number of decompositions of n into unordered form p + c*q, where p, q are terms of A274987, c=1 for even n-s and c=2 for odd n-s.

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

[0, 0, 0, 0, 0, 1, 0, 1, 1, 2, 1, 1, 2, 2, 1, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 3, 2, 2, 0, 3, 3, 1, 2, 4, 1, 3, 2, 2, 2, 2, 2, 3, 1, 2, 2, 2, 1, 3, 0, 2, 2, 0, 1, 3, 1, 3, 2, 0, 2, 3, 3, 3, 3, 3, 2, 3, 2, 2, 2, 2, 2, 3, 3, 2, 2, 4, 1, 2, 2, 3, 4, 4, 3, 4]

cp's OEIS Frontend

A276520 a(n) is the number of decompositions of n into unordered form p + c*q, where p, q are terms of A274987, c=1 for even n-s and c=2 for odd n-s.

Table of values

List of values

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

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

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