A273379 - cp's OEIS frontend

A273379 Ramanujan's largely composite numbers n (A067128) which are not divisible by all the primes < p, where p is the greatest prime divisor of n.

n	a(n)
1	3
2	10
3	20
4	84
5	168
6	336
7	504
8	660
9	672
10	3960
11	4680
12	32760
13	42840
14	43680
15	65520
16	98280
17	131040
18	163800
19	196560
20	262080
21	327600
22	393120
23	471240
24	491400
25	655200
26	942480
27	982800
28	1053360
29	1413720
30	1884960
31	1965600
32	2106720
33	2827440
34	5654880
35	6320160
36	13693680
37	14137200
38	20540520
39	27387360
40	28274400

[3, 10, 20, 84, 168, 336, 504, 660, 672, 3960, 4680, 32760, 42840, 43680, 65520, 98280, 131040, 163800, 196560, 262080, 327600, 393120, 471240, 491400, 655200, 942480, 982800, 1053360, 1413720, 1884960, 1965600, 2106720, 2827440, 5654880, 6320160, 13693680, 14137200, 20540520, 27387360, 28274400]

cp's OEIS Frontend

A273379 Ramanujan's largely composite numbers n (A067128) which are not divisible by all the primes < p, where p is the greatest prime divisor of n.

Table of values

List of values