Numbers k such that k and the least number that is larger than k and has the same prime signature as k also has the same set of distinct prime divisors as k.
A340302
Numbers k such that k and the least number that is larger than k and has the same prime signature as k also has the same set of distinct prime divisors as k.
Terms
- a(0) =12a(1) =72a(2) =144a(3) =420a(4) =432a(5) =540a(6) =864a(7) =1728a(8) =1800a(9) =2000a(10) =2268a(11) =2520a(12) =2592a(13) =5184a(14) =5400a(15) =6300a(16) =7020a(17) =10125a(18) =10368a(19) =10692a(20) =10800a(21) =11340a(22) =12600a(23) =15120a(24) =15552a(25) =16200a(26) =17640a(27) =20000a(28) =20736a(29) =21168
External references
- oeis: A340302