A285884 - cp's OEIS frontend

A285884 For n => 1, the number of distinct summands u and v that can be used in the representation of n as u+v, where u and v are two (possibly equal) Ulam numbers A002858.

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

[0, 1, 2, 3, 4, 3, 4, 3, 4, 4, 2, 5, 2, 6, 4, 3, 6, 2, 8, 4, 4, 5, 0, 6, 0, 3, 4, 2, 8, 4, 4, 5, 0, 6, 0, 3, 4, 2, 8, 4, 4, 6, 0, 8, 0, 4, 2, 2, 8, 4, 6, 5, 2, 10, 4, 7, 2, 4, 6, 4, 6, 2, 6, 10, 6, 8, 0, 4, 2, 6, 4, 3, 10, 6, 10, 5, 2, 6, 4, 8, 4, 2, 10, 4, 12]

cp's OEIS Frontend

A285884 For n => 1, the number of distinct summands u and v that can be used in the representation of n as u+v, where u and v are two (possibly equal) Ulam numbers A002858.

Table of values

List of values

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

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

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