A090633 - cp's OEIS frontend

A090633 Start with the sequence [1, 1/2, 1/3, ..., 1/n]; form new sequence of n-1 terms by taking averages of successive terms; repeat until reach a single number F(n); a(n) = numerator of F(n).

n	a(n)
1	1
2	3
3	7
4	15
5	31
6	21
7	127
8	255
9	511
10	1023
11	2047
12	1365
13	8191
14	16383
15	32767
16	65535
17	131071
18	29127
19	524287
20	209715
21	299593
22	4194303
23	8388607
24	5592405
25	33554431
26	67108863
27	134217727
28	268435455
29	536870911
30	357913941
31	2147483647
32	4294967295
33	8589934591
34	17179869183

[1, 3, 7, 15, 31, 21, 127, 255, 511, 1023, 2047, 1365, 8191, 16383, 32767, 65535, 131071, 29127, 524287, 209715, 299593, 4194303, 8388607, 5592405, 33554431, 67108863, 134217727, 268435455, 536870911, 357913941, 2147483647, 4294967295, 8589934591, 17179869183]

cp's OEIS Frontend

A090633 Start with the sequence [1, 1/2, 1/3, ..., 1/n]; form new sequence of n-1 terms by taking averages of successive terms; repeat until reach a single number F(n); a(n) = numerator of F(n).

Table of values

List of values