A088487 - cp's OEIS frontend

A088487 a(n) = Sum_{k=1..8} floor(A254864(n,k)/A254864(n-1,k)), where A254864(n,k) = n! / (n-floor(n/3^k))!.

n	a(n)
2	8
3	10
4	8
5	8
6	13
7	8
8	8
9	24
10	8
11	8
12	19
13	8
14	8
15	22
16	8
17	8
18	42
19	8
20	8
21	28
22	8
23	8
24	31
25	8
26	8
27	86
28	8
29	8
30	37
31	8
32	8
33	40
34	8
35	8
36	78
37	8
38	8
39	46
40	8
41	8
42	49
43	8
44	8
45	96
46	8
47	8
48	55
49	8
50	8
51	58
52	8
53	8
54	167
55	8
56	8
57	64
58	8
59	8
60	67
61	8
62	8
63	132
64	8
65	8
66	73
67	8
68	8
69	76
70	8
71	8
72	150
73	8
74	8
75	82
76	8
77	8
78	85
79	8
80	8
81	328
82	8
83	8
84	91
85	8
86	8
87	94
88	8
89	8

[8, 10, 8, 8, 13, 8, 8, 24, 8, 8, 19, 8, 8, 22, 8, 8, 42, 8, 8, 28, 8, 8, 31, 8, 8, 86, 8, 8, 37, 8, 8, 40, 8, 8, 78, 8, 8, 46, 8, 8, 49, 8, 8, 96, 8, 8, 55, 8, 8, 58, 8, 8, 167, 8, 8, 64, 8, 8, 67, 8, 8, 132, 8, 8, 73, 8, 8, 76, 8, 8, 150, 8, 8, 82, 8, 8, 85, 8, 8, 328, 8, 8, 91, 8, 8, 94, 8, 8]

cp's OEIS Frontend

A088487 a(n) = Sum_{k=1..8} floor(A254864(n,k)/A254864(n-1,k)), where A254864(n,k) = n! / (n-floor(n/3^k))!.

Table of values

List of values

n	a(n)
2	8
3	10
4	8
5	8
6	13
7	8
8	8
9	24
10	8
11	8
12	19
13	8
14	8
15	22
16	8
17	8
18	42
19	8
20	8
21	28
22	8
23	8
24	31
25	8
26	8
27	86
28	8
29	8
30	37
31	8
32	8
33	40
34	8
35	8
36	78
37	8
38	8
39	46
40	8
41	8
42	49
43	8
44	8
45	96
46	8
47	8
48	55
49	8
50	8
51	58
52	8
53	8
54	167
55	8
56	8
57	64
58	8
59	8
60	67
61	8
62	8
63	132
64	8
65	8
66	73
67	8
68	8
69	76
70	8
71	8
72	150
73	8
74	8
75	82
76	8
77	8
78	85
79	8
80	8
81	328
82	8
83	8
84	91
85	8
86	8
87	94
88	8
89	8

n	a(n)
2	8
3	10
4	8
5	8
6	13
7	8
8	8
9	24
10	8
11	8
12	19
13	8
14	8
15	22
16	8
17	8
18	42
19	8
20	8
21	28
22	8
23	8
24	31
25	8
26	8
27	86
28	8
29	8
30	37
31	8
32	8
33	40
34	8
35	8
36	78
37	8
38	8
39	46
40	8
41	8
42	49
43	8
44	8
45	96
46	8
47	8
48	55
49	8
50	8
51	58
52	8
53	8
54	167
55	8
56	8
57	64
58	8
59	8
60	67
61	8
62	8
63	132
64	8
65	8
66	73
67	8
68	8
69	76
70	8
71	8
72	150
73	8
74	8
75	82
76	8
77	8
78	85
79	8
80	8
81	328
82	8
83	8
84	91
85	8
86	8
87	94
88	8
89	8

n	a(n)
2	8
3	10
4	8
5	8
6	13
7	8
8	8
9	24
10	8
11	8
12	19
13	8
14	8
15	22
16	8
17	8
18	42
19	8
20	8
21	28
22	8
23	8
24	31
25	8
26	8
27	86
28	8
29	8
30	37
31	8
32	8
33	40
34	8
35	8
36	78
37	8
38	8
39	46
40	8
41	8
42	49
43	8
44	8
45	96
46	8
47	8
48	55
49	8
50	8
51	58
52	8
53	8
54	167
55	8
56	8
57	64
58	8
59	8
60	67
61	8
62	8
63	132
64	8
65	8
66	73
67	8
68	8
69	76
70	8
71	8
72	150
73	8
74	8
75	82
76	8
77	8
78	85
79	8
80	8
81	328
82	8
83	8
84	91
85	8
86	8
87	94
88	8
89	8