A343503 - cp's OEIS frontend

A343503 Number of ways to write n as x(3x+1)/2 + y(7y+1)/2 + 2^k, where x and y are integers, and k is a nonnegative integer.

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

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

cp's OEIS Frontend

A343503 Number of ways to write n as x(3x+1)/2 + y(7y+1)/2 + 2^k, where x and y are integers, and k is a nonnegative integer.

Table of values

List of values

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

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

cp's OEIS Frontend

A343503 Number of ways to write n as x*(3*x+1)/2 + y*(7*y+1)/2 + 2^k, where x and y are integers, and k is a nonnegative integer.

Table of values

List of values

A343503 Number of ways to write n as x(3x+1)/2 + y(7y+1)/2 + 2^k, where x and y are integers, and k is a nonnegative integer.

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