A117054 - cp's OEIS frontend

A117054 Number of ordered ways of writing n = i + j, where i is a prime and j is of the form k*(k+1), k > 0.

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	0
12	2
13	1
14	2
15	0
16	2
17	0
18	3
19	0
20	1
21	1
22	3
23	0
24	4
25	0
26	1
27	0
28	2
29	0
30	3
31	1
32	3
33	0
34	3
35	0
36	3
37	0
38	2
39	0
40	2
41	0
42	5
43	1
44	2
45	0
46	3
47	0
48	6
49	0
50	1
51	0
52	4
53	0
54	3
55	0
56	1
57	1
58	5
59	0
60	5
61	0
62	3
63	0
64	3
65	0
66	4
67	0
68	2
69	0
70	3
71	0
72	7
73	1
74	3
75	0
76	3
77	0
78	6
79	0
80	2
81	0
82	4
83	0
84	6
85	0
86	2
87	0
88	4
89	0
90	5
91	1
92	3
93	0
94	5
95	0
96	3
97	0
98	3
99	0
100	5
101	0
102	8
103	0
104	1

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

cp's OEIS Frontend

A117054 Number of ordered ways of writing n = i + j, where i is a prime and j is of the form k*(k+1), k > 0.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	0
12	2
13	1
14	2
15	0
16	2
17	0
18	3
19	0
20	1
21	1
22	3
23	0
24	4
25	0
26	1
27	0
28	2
29	0
30	3
31	1
32	3
33	0
34	3
35	0
36	3
37	0
38	2
39	0
40	2
41	0
42	5
43	1
44	2
45	0
46	3
47	0
48	6
49	0
50	1
51	0
52	4
53	0
54	3
55	0
56	1
57	1
58	5
59	0
60	5
61	0
62	3
63	0
64	3
65	0
66	4
67	0
68	2
69	0
70	3
71	0
72	7
73	1
74	3
75	0
76	3
77	0
78	6
79	0
80	2
81	0
82	4
83	0
84	6
85	0
86	2
87	0
88	4
89	0
90	5
91	1
92	3
93	0
94	5
95	0
96	3
97	0
98	3
99	0
100	5
101	0
102	8
103	0
104	1

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	0
12	2
13	1
14	2
15	0
16	2
17	0
18	3
19	0
20	1
21	1
22	3
23	0
24	4
25	0
26	1
27	0
28	2
29	0
30	3
31	1
32	3
33	0
34	3
35	0
36	3
37	0
38	2
39	0
40	2
41	0
42	5
43	1
44	2
45	0
46	3
47	0
48	6
49	0
50	1
51	0
52	4
53	0
54	3
55	0
56	1
57	1
58	5
59	0
60	5
61	0
62	3
63	0
64	3
65	0
66	4
67	0
68	2
69	0
70	3
71	0
72	7
73	1
74	3
75	0
76	3
77	0
78	6
79	0
80	2
81	0
82	4
83	0
84	6
85	0
86	2
87	0
88	4
89	0
90	5
91	1
92	3
93	0
94	5
95	0
96	3
97	0
98	3
99	0
100	5
101	0
102	8
103	0
104	1

n	a(n)
0	0
1	0
2	0
3	1
4	1
5	0
6	1
7	1
8	2
9	0
10	1
11	0
12	2
13	1
14	2
15	0
16	2
17	0
18	3
19	0
20	1
21	1
22	3
23	0
24	4
25	0
26	1
27	0
28	2
29	0
30	3
31	1
32	3
33	0
34	3
35	0
36	3
37	0
38	2
39	0
40	2
41	0
42	5
43	1
44	2
45	0
46	3
47	0
48	6
49	0
50	1
51	0
52	4
53	0
54	3
55	0
56	1
57	1
58	5
59	0
60	5
61	0
62	3
63	0
64	3
65	0
66	4
67	0
68	2
69	0
70	3
71	0
72	7
73	1
74	3
75	0
76	3
77	0
78	6
79	0
80	2
81	0
82	4
83	0
84	6
85	0
86	2
87	0
88	4
89	0
90	5
91	1
92	3
93	0
94	5
95	0
96	3
97	0
98	3
99	0
100	5
101	0
102	8
103	0
104	1