A180224 - cp's OEIS frontend

A180224 a(n+1) is the least k such that 1/(a(n)+1) + 1/(a(n)+2) + ... + 1/k > 1, with a(1) = 1.

n	a(n)
1	1
2	4
3	12
4	34
5	94
6	257
7	700
8	1904
9	5177
10	14074
11	38258
12	103997
13	282695
14	768446
15	2088854
16	5678095
17	15434664
18	41955768
19	114047603
20	310013528
21	842704141
22	2290707355
23	6226788179
24	16926165158
25	46010087176
26	125068383898
27	339971115266
28	924137304830
29	2512065642722
30	6828502388509

[1, 4, 12, 34, 94, 257, 700, 1904, 5177, 14074, 38258, 103997, 282695, 768446, 2088854, 5678095, 15434664, 41955768, 114047603, 310013528, 842704141, 2290707355, 6226788179, 16926165158, 46010087176, 125068383898, 339971115266, 924137304830, 2512065642722, 6828502388509]

cp's OEIS Frontend

A180224 a(n+1) is the least k such that 1/(a(n)+1) + 1/(a(n)+2) + ... + 1/k > 1, with a(1) = 1.

Table of values

List of values