A120034 - cp's OEIS frontend

A120034 Number of 3-almost primes t such that 2^n < t <= 2^(n+1).

n	a(n)
0	0
1	0
2	1
3	1
4	5
5	6
6	17
7	30
8	65
9	131
10	257
11	536
12	1033
13	2132
14	4187
15	8370
16	16656
17	33123
18	65855
19	130460
20	259431
21	513737
22	1019223
23	2019783
24	4003071
25	7930375
26	15712418
27	31126184
28	61654062
29	122137206
30	241920724
31	479226157
32	949313939
33	1880589368
34	3725662783

[0, 0, 1, 1, 5, 6, 17, 30, 65, 131, 257, 536, 1033, 2132, 4187, 8370, 16656, 33123, 65855, 130460, 259431, 513737, 1019223, 2019783, 4003071, 7930375, 15712418, 31126184, 61654062, 122137206, 241920724, 479226157, 949313939, 1880589368, 3725662783]

cp's OEIS Frontend

A120034 Number of 3-almost primes t such that 2^n < t <= 2^(n+1).

Table of values

List of values