A354565 - cp's OEIS frontend

A354565 Numbers k such that P(k)^2 | k and P(k+1)^4 | (k+1), where P(k) = A006530(k) is the largest prime dividing k.

n	a(n)
1	242
2	2400
3	57121
4	499999
5	1012499
6	2825760
7	2829123
8	11859210
9	18279039
10	21093749
11	37218852
12	38740085
13	70799772
14	96393374
15	413428949
16	642837222
17	656356767
18	675975026
19	1065352364
20	1333564323
21	1418528255
22	2654744949
23	5547008142
24	8576868299
25	9515377949
26	10022519999

[242, 2400, 57121, 499999, 1012499, 2825760, 2829123, 11859210, 18279039, 21093749, 37218852, 38740085, 70799772, 96393374, 413428949, 642837222, 656356767, 675975026, 1065352364, 1333564323, 1418528255, 2654744949, 5547008142, 8576868299, 9515377949, 10022519999]

cp's OEIS Frontend

A354565 Numbers k such that P(k)^2 | k and P(k+1)^4 | (k+1), where P(k) = A006530(k) is the largest prime dividing k.

Table of values

List of values