A178549 - cp's OEIS frontend

A178549 a(n) is a composite number at the start of an interval of consecutive integers, ending in a prime, and non-overlapping with and at least as long as the interval addressed by a(n-1).

n	a(n)
1	4
2	6
3	8
4	12
5	18
6	24
7	30
8	38
9	48
10	60
11	72
12	84
13	98
14	114
15	132
16	150
17	168
18	192
19	224
20	258
21	294
22	332
23	374
24	420
25	468
26	522
27	578
28	642
29	710
30	788
31	878
32	968
33	1062
34	1164
35	1278
36	1400
37	1524
38	1658
39	1802
40	1950
41	2100
42	2252
43	2412
44	2580
45	2750
46	2928
47	3110
48	3300
49	3492
50	3692
51	3908

[4, 6, 8, 12, 18, 24, 30, 38, 48, 60, 72, 84, 98, 114, 132, 150, 168, 192, 224, 258, 294, 332, 374, 420, 468, 522, 578, 642, 710, 788, 878, 968, 1062, 1164, 1278, 1400, 1524, 1658, 1802, 1950, 2100, 2252, 2412, 2580, 2750, 2928, 3110, 3300, 3492, 3692, 3908]

cp's OEIS Frontend

A178549 a(n) is a composite number at the start of an interval of consecutive integers, ending in a prime, and non-overlapping with and at least as long as the interval addressed by a(n-1).

Table of values

List of values