A338458 - cp's OEIS frontend

A338458 Least number of heptagonal pyramidal numbers needed to represent n.

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

[1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5, 6, 7, 8, 2, 3, 4, 5, 6, 7, 8, 9, 3, 4, 1, 2, 3, 4, 5, 6, 4, 5, 2, 3, 4, 5, 6, 7, 5, 6, 3, 4, 5, 6, 7, 8, 6, 7, 4, 5, 2, 3, 4, 5, 6, 7, 5, 6, 1, 2, 3, 4, 5, 6, 6, 7, 2, 3, 4, 5, 6, 7, 7, 8, 3, 4, 3, 4, 5, 6, 7, 8, 4, 5, 2, 3, 4, 5, 6, 7, 5, 6, 3, 4, 5, 6, 7, 8, 6, 7]

cp's OEIS Frontend

A338458 Least number of heptagonal pyramidal numbers needed to represent n.

Table of values

List of values

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

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

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