A036312 - cp's OEIS frontend

A036312 Composite numbers whose prime factors contain no digits other than 2 and 7.

n	a(n)
1	4
2	8
3	14
4	16
5	28
6	32
7	49
8	56
9	64
10	98
11	112
12	128
13	196
14	224
15	256
16	343
17	392
18	448
19	454
20	512
21	554
22	686
23	784
24	896
25	908
26	1024
27	1108
28	1372
29	1454
30	1568
31	1589
32	1792
33	1816
34	1939
35	2048
36	2216
37	2401
38	2744
39	2908
40	3136
41	3178
42	3584
43	3632
44	3878
45	4096
46	4432
47	4802
48	5089
49	5488

[4, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 343, 392, 448, 454, 512, 554, 686, 784, 896, 908, 1024, 1108, 1372, 1454, 1568, 1589, 1792, 1816, 1939, 2048, 2216, 2401, 2744, 2908, 3136, 3178, 3584, 3632, 3878, 4096, 4432, 4802, 5089, 5488]

cp's OEIS Frontend

A036312 Composite numbers whose prime factors contain no digits other than 2 and 7.

Table of values

List of values