A096005 - cp's OEIS frontend

A096005 For k >= 1, let b(k) = ceiling( Sum_{i=1..k} 1/i ); a(n) = number of b(k) that are equal to n.

n	a(n)
0	0
1	1
2	2
3	7
4	20
5	52
6	144
7	389
8	1058
9	2876
10	7817
11	21250
12	57763
13	157017
14	426817
15	1160207
16	3153770
17	8572836
18	23303385
19	63345169
20	172190019
21	468061001
22	1272321714
23	3458528995
24	9401256521
25	25555264765
26	69466411833
27	188829284972

[0, 1, 2, 7, 20, 52, 144, 389, 1058, 2876, 7817, 21250, 57763, 157017, 426817, 1160207, 3153770, 8572836, 23303385, 63345169, 172190019, 468061001, 1272321714, 3458528995, 9401256521, 25555264765, 69466411833, 188829284972]

cp's OEIS Frontend

A096005 For k >= 1, let b(k) = ceiling( Sum_{i=1..k} 1/i ); a(n) = number of b(k) that are equal to n.

Table of values

List of values