A224820 - cp's OEIS frontend

A224820 Array r(n,m), where r(n,1) = n; r(n,2) = least k such that H(k) - H(n) > 1/n; and for m > 2, r(n,m) = least k such that H(k)-H(r(n,m-1)) > H(r(n,m-1)) - H(r(n,m-2)), where H = harmonic number.

n	a(n)
1	1
2	4
3	2
4	13
5	4
6	3
7	40
8	8
9	5
10	4
11	121
12	16
13	9
14	6
15	5
16	364
17	32
18	16
19	9
20	7
21	6
22	1093
23	64
24	29
25	14
26	10
27	8
28	7
29	3280
30	128
31	53
32	22
33	15
34	11
35	9
36	8
37	9841
38	256
39	97
40	35
41	23
42	16
43	12
44	10
45	9
46	29524
47	512
48	178
49	56
50	36
51	24
52	16
53	13
54	11
55	10
56	88573
57	1024
58	327
59	90
60	57
61	36
62	22
63	17
64	14
65	12
66	11

[1, 4, 2, 13, 4, 3, 40, 8, 5, 4, 121, 16, 9, 6, 5, 364, 32, 16, 9, 7, 6, 1093, 64, 29, 14, 10, 8, 7, 3280, 128, 53, 22, 15, 11, 9, 8, 9841, 256, 97, 35, 23, 16, 12, 10, 9, 29524, 512, 178, 56, 36, 24, 16, 13, 11, 10, 88573, 1024, 327, 90, 57, 36, 22, 17, 14, 12, 11]

cp's OEIS Frontend

A224820 Array r(n,m), where r(n,1) = n; r(n,2) = least k such that H(k) - H(n) > 1/n; and for m > 2, r(n,m) = least k such that H(k)-H(r(n,m-1)) > H(r(n,m-1)) - H(r(n,m-2)), where H = harmonic number.

Table of values

List of values