A115057 - cp's OEIS frontend

A115057 Number of (2n+1)-almost primes less than or equal to (n-th n-almost prime) * ((n+1)-th (n+1)-almostprime).

n	a(n)
1	2
2	5
3	11
4	17
5	25
6	30
7	45
8	67
9	74
10	82
11	95
12	111
13	141
14	177
15	193
16	208
17	211
18	223
19	257
20	277
21	288
22	353
23	431
24	453
25	481
26	509
27	528
28	540
29	563
30	619
31	672
32	700
33	725
34	745
35	804
36	857
37	905
38	1003
39	1077
40	1127
41	1199
42	1268
43	1281
44	1321
45	1354
46	1379
47	1423
48	1517
49	1607
50	1660
51	1714
52	1748

[2, 5, 11, 17, 25, 30, 45, 67, 74, 82, 95, 111, 141, 177, 193, 208, 211, 223, 257, 277, 288, 353, 431, 453, 481, 509, 528, 540, 563, 619, 672, 700, 725, 745, 804, 857, 905, 1003, 1077, 1127, 1199, 1268, 1281, 1321, 1354, 1379, 1423, 1517, 1607, 1660, 1714, 1748]

cp's OEIS Frontend

A115057 Number of (2n+1)-almost primes less than or equal to (n-th n-almost prime) * ((n+1)-th (n+1)-almostprime).

Table of values

List of values