A182863 - cp's OEIS frontend

A182863 Members m of A025487 such that, if k appears in m's prime signature, k-1 appears at least as often as k (for any integer k > 1).

n	a(n)
1	1
2	2
3	6
4	12
5	30
6	60
7	210
8	360
9	420
10	1260
11	2310
12	2520
13	4620
14	13860
15	27720
16	30030
17	60060
18	75600
19	138600
20	180180
21	360360
22	510510
23	831600
24	900900
25	1021020
26	1801800
27	3063060
28	6126120
29	9699690
30	10810800
31	15315300
32	19399380
33	30630600
34	37837800

[1, 2, 6, 12, 30, 60, 210, 360, 420, 1260, 2310, 2520, 4620, 13860, 27720, 30030, 60060, 75600, 138600, 180180, 360360, 510510, 831600, 900900, 1021020, 1801800, 3063060, 6126120, 9699690, 10810800, 15315300, 19399380, 30630600, 37837800]

cp's OEIS Frontend

A182863 Members m of A025487 such that, if k appears in m's prime signature, k-1 appears at least as often as k (for any integer k > 1).

Table of values

List of values