A308597 - cp's OEIS frontend

A308597 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + 2^c*5^d, where a,b,c,d are nonnegative integers with a <= b and d <= 1.

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

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

cp's OEIS Frontend

A308597 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + 2^c*5^d, where a,b,c,d are nonnegative integers with a <= b and d <= 1.

Table of values

List of values

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

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

cp's OEIS Frontend

A308597 Number of ways to write n as a*(a+1)/2 + b*(b+1)/2 + 2^c*5^d, where a,b,c,d are nonnegative integers with a <= b and d <= 1.

Table of values

List of values

A308597 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + 2^c*5^d, where a,b,c,d are nonnegative integers with a <= b and d <= 1.

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