A229168 - cp's OEIS frontend

A229168 Define a sequence of real numbers by b(1)=2, b(n+1) = b(n) + log_2(b(n)); a(n) = smallest i such that b(i) >= 2^n.

n	a(n)
1	1
2	3
3	5
4	7
5	11
6	17
7	27
8	44
9	74
10	127
11	225
12	402
13	728
14	1333
15	2459
16	4566
17	8525
18	15993
19	30122
20	56936
21	107953
22	205253
23	391223
24	747369
25	1430648
26	2743721
27	5270959
28	10141978
29	19542806
30	37708232
31	72849931
32	140905791
33	272836175
34	528832794
35	1026008203
36	1992390617

[1, 3, 5, 7, 11, 17, 27, 44, 74, 127, 225, 402, 728, 1333, 2459, 4566, 8525, 15993, 30122, 56936, 107953, 205253, 391223, 747369, 1430648, 2743721, 5270959, 10141978, 19542806, 37708232, 72849931, 140905791, 272836175, 528832794, 1026008203, 1992390617]

cp's OEIS Frontend

A229168 Define a sequence of real numbers by b(1)=2, b(n+1) = b(n) + log_2(b(n)); a(n) = smallest i such that b(i) >= 2^n.

Table of values

List of values